OBS Lua Datetime digital clock 2019-12-24

erikfdev · Sep 13, 2021

The script makes OBS crash when the syntax of the date-time format you enter as parameter is not correct.
Be aware that the format is evaluated every second. For this reason, make sure that you enter an additional % and its valid character very quickly.

avgjoefriday · Oct 25, 2021

Richard Gagnon said:
I have done several modifications to the script to accommodate timezone in the format specifiers and appending st, nd, rd th to the day of month.

Richard,
THANK YOU so much for your additions to this plugin! (And thanks to the original author too!)
If you have a moment, could you add a way to drop the leading zero from the day and month?
Much thanks!

avgjoefriday · Oct 25, 2021

oops, I meant hour, day and month ;-)

avgjoefriday · Oct 26, 2021

Here is a new and improved version that includes Richard's additions as well as the ability to get the hour, day, month without the leading zero. Also someone had asked in an earlier question how to get a blank line between the parts, you can use %n to get a new line in your string.

Best!

Lua:

--[[ OBS Studio datetime script

This script transforms a text source into a digital clock. The datetime format
is configurable and uses the same syntax than the Lua os.date() call.
https://www.lua.org/pil/22.1.html
v1 - Created by Albin Kauffmann (albinou)  https://gitlab.com/albinou/obs-scripts/-/blob/master/datetime.lua
v2 - Revisions by Richard Gagnon
    added %dx   day of month with st,rd,th,nd (01st) [01-31]\
    noted %z
    noted %Z
    fixed ability to choose Text Source
v3 - Revisions by Scott Hardwick
    added %dn    day of the month as a decimal number [1-31]
    added %mn    month as a decimal number [1-12]
    added %In    hour, using a 12-hour clock as a decimal number [1-12]
    noted %n
]]

obs             = obslua
source_name     = ""
datetime_format = ""

activated       = false


-- Function to set the time text
function set_datetime_text(source, format)
    if string.find(format, "%%dx") ~= nil then
        local s = "thstndrd"
        local i = 0
        local x = 0
        local d = os.date("%d")
        x = tonumber(d) -- make the day string a number
        if x < 4 or x > 20 then
            i = tonumber(d.sub(d, -1)) * 2 -- get the number value of the last digit and multiple by 2 for indexing into s
            if i > 6 then
                i = 0
            end
        end
        format = format.gsub(format, "%%dx", tostring(x)..string.sub(s, i + 1, i + 2))
    end
    if string.find(format, "%%dn") ~= nil then
        local x = 0
        local d = os.date("%d")
        x = tonumber(d) -- make the day string a number
        format = format.gsub(format, "%%dn", tostring(x))
    end
    if string.find(format, "%%mn") ~= nil then
        local x = 0
        local d = os.date("%m")
        x = tonumber(d) -- make the month string a number
        format = format.gsub(format, "%%mn", tostring(x))
    end
    if string.find(format, "%%In") ~= nil then
        local x = 0
        local d = os.date("%I")
        x = tonumber(d) -- make the hour (12 hour clock) string a number
        format = format.gsub(format, "%%In", tostring(x))
    end
    local text = os.date(format)
    local settings = obs.obs_data_create()

    obs.obs_data_set_string(settings, "text", text)
    obs.obs_source_update(source, settings)
    obs.obs_data_release(settings)
end

function timer_callback()
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        set_datetime_text(source, datetime_format)
        obs.obs_source_release(source)
    end
end

function activate(activating)
    if activated == activating then
        return
    end

    activated = activating

    if activating then
        obs.timer_add(timer_callback, 1000)
    else
        obs.timer_remove(timer_callback)
    end
end

-- Called when a source is activated/deactivated
function activate_signal(cd, activating)
    local source = obs.calldata_source(cd, "source")
    if source ~= nil then
        local name = obs.obs_source_get_name(source)
        if (name == source_name) then
            activate(activating)
        end
    end
end

function source_activated(cd)
    activate_signal(cd, true)
end

function source_deactivated(cd)
    activate_signal(cd, false)
end

function reset()
    activate(false)
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        local active = obs.obs_source_showing(source)
        obs.obs_source_release(source)
        activate(active)
    end
end

----------------------------------------------------------

function script_description()
return "Sets a text source to act as a clock when the source is active.\
\
The datetime format can use the following tags:\
\
%a abbreviated weekday name (e.g., Wed)\
%A full weekday name (e.g., Wednesday)\
%b abbreviated month name (e.g., Sep)\
%B full month name (e.g., September)\
%c date and time (e.g., 09/16/98 23:48:10)\
%d day of the month (16) [01-31]\
%dn    day of the month as a decimal number [1-31]\
%dx day of month with st,rd,th,nd (01st) [01-31]\
%H hour, using a 24-hour clock (23) [00-23]\
%I hour, using a 12-hour clock (11) [01-12]\
%In    hour, using a 12-hour clock as a decimal number [1-12]\
%M minute (48) [00-59]\
%m month (09) [01-12]\
%mn    month as a decimal number [1-12]\
%p either \"am\" or \"pm\" (pm)\
%S second (10) [00-61]\
%w weekday (3) [0-6 = Sunday-Saturday]\
%x date (e.g., 09/16/98)\
%X time (e.g., 23:48:10)\
%Y full year (1998)\
%y two-digit year (98) [00-99]\
%z timezone (0600)\
%Z timezone (Mountain Standard Time)\
%n newline\
%% the character `%´"
end

function script_properties()
    local props = obs.obs_properties_create()

    obs.obs_properties_add_text(props, "format", "Datetime format", obs.OBS_TEXT_DEFAULT)

    local p = obs.obs_properties_add_list(props, "source", "Text Source", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING)
    local sources = obs.obs_enum_sources()
    if sources ~= nil then
        for _, source in ipairs(sources) do
            -- THIS LINE IS INCORRECT use following line source_id = obs.obs_source_get_id(source)
            source_id = obs.obs_source_get_unversioned_id(source)
            if source_id == "text_gdiplus" or source_id == "text_ft2_source" then
                local name = obs.obs_source_get_name(source)
                obs.obs_property_list_add_string(p, name, name)
            end
        end
    end
    obs.source_list_release(sources)

    return props
end

function script_defaults(settings)
    obs.obs_data_set_default_string(settings, "format", "%X")
end

function script_update(settings)
    activate(false)

    source_name = obs.obs_data_get_string(settings, "source")
    datetime_format = obs.obs_data_get_string(settings, "format")

    reset()
end

function script_load(settings)
    local sh = obs.obs_get_signal_handler()
    obs.signal_handler_connect(sh, "source_show", source_activated)
    obs.signal_handler_connect(sh, "source_hide", source_deactivated)
end

fruv · Nov 5, 2021

Is it possible to manually set a timezone? IE I'm in EST (-4) but want to display PST (-7)

TheNokzz · Nov 11, 2021

Is it possible to change the language to german?

albinou · Nov 15, 2021

TheNokzz said:
Is it possible to change the language to german?

As @erikfdev mentioned, you need to change the locale in order to change the language. Update the start of the set_date_time() function with something like this (where "de_DE.UTF-8" is the German locale):

Lua:

function set_datetime_text(source, format)
   -- save the current locale "time" setting
    local locale_backup = os.setlocale(nil, "time")
   -- set our own "time" locale setting
    os.setlocale("de_DE.UTF-8", "time")
    
    local text = os.date(format)
    -- restore the original "time" locale setting
    os.setlocale(locale_backup, "time")
    
    local settings = obs.obs_data_create()
    ...
    ...

PS: I only noticed all this discussion about my script. Thanks guys for your reactions!

albinou · Nov 15, 2021

fruv said:
Is it possible to manually set a timezone? IE I'm in EST (-4) but want to display PST (-7)

Yes, with a script update. Indeed, os.date() can be called with a second argument (the date to display, in seconds). This date can obtained with a call to os.time().

So if you want to display time at PST (-7), which the same than UTC-8 I guess, you can replace the os.date() call with:

Lua:

local text = os.date(format, os.time() * - 8 * 60 * 60)

Not tested, but I guess it would work.

untukku · Nov 26, 2021

how to make it look like my screenshot? display HOUR above its position and DATE below its position, with Indonesian not English.

albinou · Nov 27, 2021

untukku said:
View attachment 77410

how to make it look like my screenshot? display HOUR above its position and DATE below its position, with Indonesian not English.

Did you to use a "\n" into the date & time format? ("\n" is a line break).

And in order to get the Indonesian date, you should change the locale (to "id_ID" I guess ?).

untukku · Nov 30, 2021

albinou said:
Did you to use a "\n" into the date & time format? ("\n" is a line break).

And in order to get the Indonesian date, you should change the locale (to "id_ID" I guess ?).

Using \n still can't. What is the solution?
where in the lua script change or add the "id_ID"? I can't find it, fyi I'm not a programmer and don't understand coding.

JonathanC09 · Dec 15, 2021

Hello, I am a Spanish speaker and I am using a translator. Excuse me if I'm writing wrong.

This script is impressive and thanks to previous comments I was able to put it in Spanish, so thank you very much to everyone who has contributed to this script.

Well, I would like to ask if is there any way to create a variant that displays a personalized message depending on the day of the week?

E.g. Sundays: Sunday Mass || Thursdays: Eucharistic Thursday. (I help in a church).

I know it would have to be something like

Code:

if "variable" == "value"
%ñ = "Sunday Mass"

but I don't know what that variable is or even if that's how it is written in this language. I appreciate any help.

ElektroHeld · Mar 10, 2022

Hello @albinou,
I did the work and wrote a small change in your script. It's not 100% perfect, but it works.

You may or may not want to include this in your next version, it's up to you.

Lua:

--[[ OBS Studio datetime script

This script transforms a text source into a digital clock. The datetime format
is configurable and uses the same syntax than the Lua os.date() call.
]]

obs             = obslua
source_name     = ""
datetime_format = ""
time_offset     = ""

activated       = false


-- Function to set the time text
function set_datetime_text(source, format)
    local time = os.time()
    local time = time - (60*60*11) + (60*60*time_offset)
    local text = os.date("!".. format, time)
    
    -- print(text)
    local settings = obs.obs_data_create()

    obs.obs_data_set_string(settings, "text", text)
    obs.obs_source_update(source, settings)
    obs.obs_data_release(settings)
end

function timer_callback()
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        set_datetime_text(source, datetime_format)
        obs.obs_source_release(source)
    end
end

function activate(activating)
    if activated == activating then
        return
    end

    activated = activating

    if activating then
        obs.timer_add(timer_callback, 1000)
    else
        obs.timer_remove(timer_callback)
    end
end

-- Called when a source is activated/deactivated
function activate_signal(cd, activating)
    local source = obs.calldata_source(cd, "source")
    if source ~= nil then
        local name = obs.obs_source_get_name(source)
        if (name == source_name) then
            activate(activating)
        end
    end
end

function source_activated(cd)
    activate_signal(cd, true)
end

function source_deactivated(cd)
    activate_signal(cd, false)
end

function reset()
    activate(false)
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        local active = obs.obs_source_showing(source)
        obs.obs_source_release(source)
        activate(active)
    end
end

----------------------------------------------------------

function script_description()
    return "Sets a text source to act as a clock when the source is active.\
\
The datetime format can use the following tags:\
\
    %a    abbreviated weekday name (e.g., Wed)\
    %A    full weekday name (e.g., Wednesday)\
    %b    abbreviated month name (e.g., Sep)\
    %B    full month name (e.g., September)\
    %c    date and time (e.g., 09/16/98 23:48:10)\
    %d    day of the month (16) [01-31]\
    %H    hour, using a 24-hour clock (23) [00-23]\
    %I    hour, using a 12-hour clock (11) [01-12]\
    %M    minute (48) [00-59]\
    %m    month (09) [01-12]\
    %p    either \"am\" or \"pm\" (pm)\
    %S    second (10) [00-61]\
    %w    weekday (3) [0-6 = Sunday-Saturday]\
    %x    date (e.g., 09/16/98)\
    %X    time (e.g., 23:48:10)\
    %Y    full year (1998)\
    %y    two-digit year (98) [00-99]\
    %%    the character `%´"
end

function script_properties()
    local props = obs.obs_properties_create()

    obs.obs_properties_add_text(props, "format", "Datetime format", obs.OBS_TEXT_DEFAULT)
    int = obs.obs_properties_add_list(props, "offset", "Houre offset", obs.OBS_COMBO_TYPE_LIST, obs.OBS_COMBO_FORMAT_INT)
    obs.obs_property_list_add_int(int, "UTC", 11)
    obs.obs_property_list_add_int(int, "UTC + 1", 12)
    obs.obs_property_list_add_int(int, "UTC + 2", 13)
    obs.obs_property_list_add_int(int, "UTC + 3", 14)
    obs.obs_property_list_add_int(int, "UTC + 4", 15)
    obs.obs_property_list_add_int(int, "UTC + 5", 16)
    obs.obs_property_list_add_int(int, "UTC + 6", 17)
    obs.obs_property_list_add_int(int, "UTC + 7", 18)
    obs.obs_property_list_add_int(int, "UTC + 8", 19)
    obs.obs_property_list_add_int(int, "UTC + 9", 20)
    obs.obs_property_list_add_int(int, "UTC + 10", 21)
    obs.obs_property_list_add_int(int, "UTC + 11", 22)
    obs.obs_property_list_add_int(int, "UTC + 12", 23)
    obs.obs_property_list_add_int(int, "UTC - 1", 10)
    obs.obs_property_list_add_int(int, "UTC - 2", 9)
    obs.obs_property_list_add_int(int, "UTC - 3", 8)
    obs.obs_property_list_add_int(int, "UTC - 4", 7)
    obs.obs_property_list_add_int(int, "UTC - 5", 6)
    obs.obs_property_list_add_int(int, "UTC - 6", 5)
    obs.obs_property_list_add_int(int, "UTC - 7", 4)
    obs.obs_property_list_add_int(int, "UTC - 8", 3)
    obs.obs_property_list_add_int(int, "UTC - 9", 2)
    obs.obs_property_list_add_int(int, "UTC - 10", 1)
    obs.obs_property_list_add_int(int, "UTC - 11", 0)

    local p = obs.obs_properties_add_list(props, "source", "Text Source", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING)
    local sources = obs.obs_enum_sources()
    if sources ~= nil then
        for _, source in ipairs(sources) do
            source_id = obs.obs_source_get_id(source)
            if source_id == "text_gdiplus_v2" or source_id == "text_ft2_source_v2" then
                local name = obs.obs_source_get_name(source)
                obs.obs_property_list_add_string(p, name, name)
            end
        end
    end
    obs.source_list_release(sources)

    return props
end

function script_defaults(settings)
    obs.obs_data_set_default_string(settings, "format", "%X")
end

function script_update(settings)
    activate(false)

    source_name = obs.obs_data_get_string(settings, "source")
    datetime_format = obs.obs_data_get_string(settings, "format")
    time_offset = obs.obs_data_get_int(settings, "offset")

    reset()
end

function script_load(settings)
    local sh = obs.obs_get_signal_handler()
    obs.signal_handler_connect(sh, "source_show", source_activated)
    obs.signal_handler_connect(sh, "source_hide", source_deactivated)
end

Rediflow · Mar 18, 2022

Is there a way to change the language of the shown date?
at my Windows System and my OBS, wich are both completely run in German settings, Days and months are presented by this lua script in English. How could I make it apere in German, or French or Italien etc...?

AlphaThemis · Apr 2, 2022

Can some one help I am getting this error and Idk why it happens.

[clock1.lua] Error loading file: /Users/bur/Desktop/clock1.lua:1: unexpected symbol near '{'

Frankie_NO · Sep 9, 2022

I'm having a problem with this script, it do not read my PC time... .like it's now 15:47 and it show 15:09, how can it be forced to check the PC time say every 5 minutes and update if needed?

vansontv · Sep 14, 2022

untukku said:
View attachment 77567
Using \n still can't. What is the solution?
where in the lua script change or add the "id_ID"? I can't find it, fyi I'm not a programmer and don't understand coding.

like this right?

e2Berlin · Jul 19, 2024

Hi all,

thank you for this great piece of code! So helpful!

Now I'd like to even show milliseconds in the livestream - is there any chance this script could do that?

All the best,
Andy

KatsuoStreams · Aug 11, 2024

Hello

I would like some help with my script.

I wanted to put it in a way that would be...

hour - minutes - seconds

weekday name - day . abbreviated month name . current year

Because I am Brazilian, I don't know if there is a way to fix this, and how I could fix it,

Also, when I change the code, it tends to crash and close OBS.

I would appreciate any feedback, as this item will be very useful in my live streams.

Suslik V · Aug 12, 2024

Custom names for day of the week and month.

Lua:

--[[ OBS Studio datetime script

This script transforms a text source into a digital clock. The datetime format
is configurable and uses the same syntax than the Lua os.date() call.
https://www.lua.org/pil/22.1.html
v1 - Created by Albin Kauffmann (albinou)  https://gitlab.com/albinou/obs-scripts/-/blob/master/datetime.lua
v2 - Revisions by Richard Gagnon
    added %dx   day of month with st,rd,th,nd (01st) [01-31]\
    noted %z
    noted %Z
    fixed ability to choose Text Source
v3 - Revisions by Scott Hardwick
    added %dn    day of the month as a decimal number [1-31]
    added %mn    month as a decimal number [1-12]
    added %In    hour, using a 12-hour clock as a decimal number [1-12]
    noted %n
v4 - Revisions by Suslik V
    removed %dx    Reason: No localization.
    added %ms    Month as a custom string (12 values)
    added %ws    Weekday as a custom string (7 values)
    added %Hn    Hour, in 24h format as a decimal number (0-23)
]]

local obs             = obslua
local source_name     = ""
local datetime_format = ""

local activated       = false

local week = {}
local month = {}

-- Function to set the time text
function set_datetime_text(source, format)
    local x = 0
    local d = ""
    if string.find(format, "%%dn") ~= nil then
        d = os.date("%d")
        x = tonumber(d) -- make the day string a number
        format = format.gsub(format, "%%dn", tostring(x))
    end
    if string.find(format, "%%mn") ~= nil then
        d = os.date("%m")
        x = tonumber(d) -- make the month string a number
        format = format.gsub(format, "%%mn", tostring(x))
    end
    if string.find(format, "%%Hn") ~= nil then
        d = os.date("%H")
        x = tonumber(d) -- make the hour (24 hour clock) string a number
        format = format.gsub(format, "%%Hn", tostring(x))
    end
    if string.find(format, "%%In") ~= nil then
        d = os.date("%I")
        x = tonumber(d) -- make the hour (12 hour clock) string a number
        format = format.gsub(format, "%%In", tostring(x))
    end
    if string.find(format, "%%ws") ~= nil then
        d = os.date("%w")
        x = tonumber(d) -- make the week string a number
        format = format.gsub(format, "%%ws", week[x + 1])
    end
    if string.find(format, "%%ms") ~= nil then
        d = os.date("%m")
        x = tonumber(d) -- make the month string a number
        format = format.gsub(format, "%%ms", month[x])
    end

    local text = os.date(format)

    local settings = obs.obs_data_create()

    obs.obs_data_set_string(settings, "text", text)
    obs.obs_source_update(source, settings)
    obs.obs_data_release(settings)
end

function timer_callback()
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        set_datetime_text(source, datetime_format)
        obs.obs_source_release(source)
    end
end

function activate(activating)
    if activated == activating then
        return
    end

    activated = activating

    if activating then
        obs.timer_add(timer_callback, 1000)
    else
        obs.timer_remove(timer_callback)
    end
end

-- Called when a source is activated/deactivated
function activate_signal(cd, activating)
    local source = obs.calldata_source(cd, "source")
    if source ~= nil then
        local name = obs.obs_source_get_name(source)
        if (name == source_name) then
            activate(activating)
        end
    end
end

function source_activated(cd)
    activate_signal(cd, true)
end

function source_deactivated(cd)
    activate_signal(cd, false)
end

function reset()
    activate(false)
    local source = obs.obs_get_source_by_name(source_name)
    if source ~= nil then
        local active = obs.obs_source_showing(source)
        obs.obs_source_release(source)
        activate(active)
    end
end

----------------------------------------------------------

function script_description()
return "Sets a text source to act as a clock when the source is active."
end

function script_properties()
    local props = obs.obs_properties_create()

    obs.obs_properties_add_text(props, "sunday_0", "Sunday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "monday_1", "Monday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "tuesday_2", "Tuesday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "wednesday_3", "Wednesday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "thursday_4", "Thursday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "friday_5", "Friday", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "saturday_6", "Saturday", obs.OBS_TEXT_DEFAULT)

    obs.obs_properties_add_text(props, "month_1", "Jun", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_2", "Feb", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_3", "Mar", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_4", "Apr", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_5", "May", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_6", "Jun", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_7", "Jul", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_8", "Aug", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_9", "Sep", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_10", "Oct", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_11", "Nov", obs.OBS_TEXT_DEFAULT)
    obs.obs_properties_add_text(props, "month_12", "Dec", obs.OBS_TEXT_DEFAULT)

    p = obs.obs_properties_add_text(props, "format", "Datetime format", obs.OBS_TEXT_DEFAULT)

    local desc = "Specifier    Replaced by [Example]\
%a    Abbreviated weekday name [Thu]\
%A    Full weekday name [Thursday]\
%b    Abbreviated month name [Aug]\
%B    Full month name [August]\
%c    Date and time representation [Thu Aug 23 14:55:02 2001]\
%C    Year divided by 100 and truncated to integer (00-99) [20]\
%d    Day of the month, zero-padded (01-31) [04]\
%dn    Day of the month (1-31) [4]\
%D    Short MM/DD/YY date, equivalent to %m/%d/%y [08/23/01]\
%e    Day of the month, space-padded ( 1-31) [ 3]\
%F    Short YYYY-MM-DD date, equivalent to %Y-%m-%d [2001-08-23]\
%g    Week-based year, last two digits (00-99) [01]\
%G    Week-based year [2001]\
%h    Abbreviated month name (same as %b) [Aug]\
%H    Hour in 24h format, zero-padded (00-23) [14]\
%I    Hour in 12h format, zero padded (01-12) [02]\
%Hn    Hour, in 24h format as a decimal number [0-23] [21]\
%In    Hour, in 12h format as a decimal number [1-12] [9]\
%j    Day of the year (001-366) [235]\
%m    Month as a decimal number, zero padded (01-12) [08]\
%mn    Month as a decimal number (1-12) [8]\
%ms    Month as a custom string (12 values) [Winter]\
%M    Minute (00-59) [55]\
%n    New-line character ('\\n')\
%p    AM or PM designation [PM]\
%r    12-hour clock time [02:55:02 pm]\
%R    24-hour HH:MM time, equivalent to %H:%M [14:55]\
%S    Second (00-61) [02]\
%t    Horizontal-tab character ('\\t')\
%T    ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S [14:55:02]\
%u    ISO 8601 weekday as number with Monday as 1 (1-7) [4]\
%U    Week number with the first Sunday as the first day of week one (00-53) [33]\
%V    ISO 8601 week number (01-53) [34]\
%w    Weekday as a decimal number with Sunday as 0 (0-6) [4]\
%ws    Weekday as a custom string (7 values) [Middle day]\
%W    Week number with the first Monday as the first day of week one (00-53) [34]\
%x    Date representation [08/23/01]\
%X    Time representation [14:55:02]\
%y    Year, last two digits (00-99) [01]\
%Y    Year [2001]\
%z    ISO 8601 offset from UTC in timezone (1 minute=1, 1 hour=100)\
If timezone cannot be determined, no characters [+0200]\
%Z    Timezone name or abbreviation\
If timezone cannot be determined, no characters [CDT]\
%%    A % sign"

    obs.obs_property_set_long_description(p, desc)

    p = obs.obs_properties_add_list(props, "source", "Text Source", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING)
    local sources = obs.obs_enum_sources()
    if sources ~= nil then
        for _, source in ipairs(sources) do
            source_id = obs.obs_source_get_unversioned_id(source)
            if source_id == "text_gdiplus" or source_id == "text_ft2_source" then
                local name = obs.obs_source_get_name(source)
                obs.obs_property_list_add_string(p, name, name)
            end
        end
    end
    obs.source_list_release(sources)

    return props
end

function script_defaults(settings)
    obs.obs_data_set_default_string(settings, "format", "%X")

    obs.obs_data_set_default_string(settings, "sunday_0", "First day of week")
    obs.obs_data_set_default_string(settings, "monday_1", "Second day of week")
    obs.obs_data_set_default_string(settings, "tuesday_2", "Third day of week")
    obs.obs_data_set_default_string(settings, "wednesday_3", "Middle day of week")
    obs.obs_data_set_default_string(settings, "thursday_4", "Fifth day of week")
    obs.obs_data_set_default_string(settings, "friday_5", "Sixth day of week")
    obs.obs_data_set_default_string(settings, "saturday_6", "Last day of week")

    obs.obs_data_set_default_string(settings, "month_1", "I")
    obs.obs_data_set_default_string(settings, "month_2", "II")
    obs.obs_data_set_default_string(settings, "month_3", "III")
    obs.obs_data_set_default_string(settings, "month_4", "IV")
    obs.obs_data_set_default_string(settings, "month_5", "V")
    obs.obs_data_set_default_string(settings, "month_6", "VI")
    obs.obs_data_set_default_string(settings, "month_7", "VII")
    obs.obs_data_set_default_string(settings, "month_8", "VIII")
    obs.obs_data_set_default_string(settings, "month_9", "IX")
    obs.obs_data_set_default_string(settings, "month_10", "X")
    obs.obs_data_set_default_string(settings, "month_11", "XI")
    obs.obs_data_set_default_string(settings, "month_12", "XII")
end

function script_update(settings)
    activate(false)

    week[1] = obs.obs_data_get_string(settings, "sunday_0")
    week[2] = obs.obs_data_get_string(settings, "monday_1")
    week[3] = obs.obs_data_get_string(settings, "tuesday_2")
    week[4] = obs.obs_data_get_string(settings, "wednesday_3")
    week[5] = obs.obs_data_get_string(settings, "thursday_4")
    week[6] = obs.obs_data_get_string(settings, "friday_5")
    week[7] = obs.obs_data_get_string(settings, "saturday_6")

    month[1] = obs.obs_data_get_string(settings, "month_1")
    month[2] = obs.obs_data_get_string(settings, "month_2")
    month[3] = obs.obs_data_get_string(settings, "month_3")
    month[4] = obs.obs_data_get_string(settings, "month_4")
    month[5] = obs.obs_data_get_string(settings, "month_5")
    month[6] = obs.obs_data_get_string(settings, "month_6")
    month[7] = obs.obs_data_get_string(settings, "month_7")
    month[8] = obs.obs_data_get_string(settings, "month_8")
    month[9] = obs.obs_data_get_string(settings, "month_9")
    month[10] = obs.obs_data_get_string(settings, "month_10")
    month[11] = obs.obs_data_get_string(settings, "month_11")
    month[12] = obs.obs_data_get_string(settings, "month_12")

    source_name = obs.obs_data_get_string(settings, "source")
    datetime_format = obs.obs_data_get_string(settings, "format")

    reset()
end

function script_load(settings)
    local sh = obs.obs_get_signal_handler()
    obs.signal_handler_connect(sh, "source_show", source_activated)
    obs.signal_handler_connect(sh, "source_hide", source_deactivated)
end

OBS Lua Datetime digital clock 2019-12-24

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