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Sets mission date and time. Players joining after mission start will get the current server date including the year.
While the game creates February 29th in a leap year, it removes December 31st.
For example, setDate [1980,12,31,12,0] will result in the game jumping to [1981,1,1,12,0] as 1980 is a leap year.
Arma 3
Clients' local date is automatically and periodically synchronised with the server date.
In order to change the date without waiting for automatic synchronisation, use remote execution: [[2001,6,22,12,0]] remoteExec ["setDate"];.
Mission InformationEnvironment


setDate date
date: Array format Date
Return Value:


Example 1:
setDate [1986, 2, 25, 16, 0]; // 4:00pm February 25, 1986
Example 2:
// Set the real date: if (isServer) then { waitUntil { time > 0 }; [systemTime select [0, 5]] remoteExec ["setDate"]; };
Example 3:
Using setDate with an incorrect (like negative or exceeding) value will still work properly:
private _date = date; _date set [3, 25]; // set hour to 25 setDate _date; // date = next day 1am

Additional Information

See also:
date skipTime numberToDate dateToNumber


Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
Alpha - c
Posted on Dec 07, 2012 - 11:10 (UTC)
This command sets the date for the southern hemisphere only, i.e. when the map is in northern hemisphere a date [2010,12,7,17,0] is in day light and and date [2010,6,7,17,0] is in darkness.
Osmo - c
Posted on Oct 31, 2011 - 21:07 (UTC)
In multiplayer, the effect of this command is local, not global. The date from the server is synchronized with clients when they join the game (including start of the mission and joining in progress). E.g. if this command is executed on server in the init.sqf before the mission starts, every client will be synchronized with server as mission is started. However, if you run this command in the middle of the mission, effect is local.
MulleDK13 - c
Posted on Oct 04, 2014 - 17:43 (UTC)
Since an unknown version of Arma 3, this command now has global effect when executed on the server.
OOKexOo - c
Posted on Apr 23, 2017 - 02:58 (UTC)
Regarding execution in the middle of a session, the post of MulleDK13 is not entirely true. If you don't change the year, you are perfectly fine when executing the command on the server only. However, the server does not sync the year. Hence, if you do change the year, you have to execute the command on the server, clients and JIP to account for the missing sync. e.g.
[[], { setDate [1986, 2, 25, 16, 0] }] remoteExec ["call", 0, "JIP_id_setDate"];