UuLinuxTime

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Summary

User-Defined Function: integer uuLinuxTime( integer year, integer mon, integer day, integer hour, integer min, integer sec );

Returns an integer that is the Unix time code representing the input date

  • year
  • mon: month
  • day
  • hour: hours (0 to 23)
  • min: minutes
  • sec: seconds

(This function was converted to LSL from Linux kernel's sources: /usr/src/*/kernel/time.c)

It excepts a date/time in UTC. ([Coordinated Universal Time])

  • PST = UTC - 8 hours
  • PDT = UTC - 7 hours
// Contributed Freely to the Public Domain without limitation.
// 2011 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ]
// Kaluura Boa [ https://wiki.secondlife.com/wiki/User:Kaluura_Boa ]
//
integer uuLinuxTime(integer year, integer mon, integer day, integer hour, integer min, integer sec)
{
    mon -= 2;
    if (mon <= 0)
    {
        mon += 12;
        --year;
    }
    return ((((year/4 - year/100 + year/400 + (367*mon)/12 + day) + year*365 - 719499)*24 
        + hour)*60 + min)*60 + sec;
}
 
default
{
    state_entry()
    {
        llOwnerSay("1970-01-01 00:00:00 --> " + (string)uuLinuxTime(1970, 1, 1, 0, 0, 0));
        llOwnerSay("2005-03-18 01:58:31 --> " + (string)uuLinuxTime(2005, 3, 18, 1, 58, 31));
        llOwnerSay("2009-02-13 23:31:30 --> " + (string)uuLinuxTime(2009, 2, 13, 23, 31, 30));
        llOwnerSay("2038-01-19 03:14:07 --> " + (string)uuLinuxTime(2038, 1, 19, 3, 14, 7));
 
    }
}

Notes

  • This function does not check if the input values are valid.
  • Valid dates are from 1970-01-01 00:00:00 to 2038-01-19 03:14:07.
  • Beyond this date, the returned value will be negative since LSL integers are always signed.
  • It will also restart to zero for any date beyond 2106-02-07 06:28:15.