Difference between revisions of "GetTimestampOffset"

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m (Removed accidentally-included text from borrowed page)
(Updated with Pacific Time functionality.)
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{{LSL Header}}
 
{{LSL Header}}
  
This function returns [[llGetTimestamp|llGetTimestamp()]] with an hour offset. It will wrap day, month and year as required. Offsets of more than 24 hours either way are not supported.
+
This function returns [[llGetTimestamp|llGetTimestamp()]] with an hour offset. It will wrap day, month and year as required. If it is passed an offset of more than 24 hours either way, it will use the offset for US Pacific Time (SL time), automatically adjusting for DST.
  
 
<lsl>
 
<lsl>
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     integer intMonth = llList2Integer(lstTime, 1);
 
     integer intMonth = llList2Integer(lstTime, 1);
 
     integer intDay  = llList2Integer(lstTime, 2);
 
     integer intDay  = llList2Integer(lstTime, 2);
     integer intHour  = llList2Integer(lstTime, 3) + intOffset;
+
     integer intHour  = llList2Integer(lstTime, 3);
  
 
     string  strYear;
 
     string  strYear;
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     if (intOffset == 0) { return strTimestamp; }
 
     if (intOffset == 0) { return strTimestamp; }
 +
 +
    if (intOffset < -24 || intOffset > 24) {
 +
        intOffset = ((integer)llGetWallclock() - (integer)llGetGMTclock()) / 3600;
 +
    }
  
 
     // Add a day to February in leap years
 
     // Add a day to February in leap years

Revision as of 06:35, 13 May 2008

This function returns llGetTimestamp() with an hour offset. It will wrap day, month and year as required. If it is passed an offset of more than 24 hours either way, it will use the offset for US Pacific Time (SL time), automatically adjusting for DST.

<lsl> string sbGetTimestamp(integer intOffset) {

   // Start with December for purposes of wrapping
   list    lstDays  = [31, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
   string  strTimestamp = llGetTimestamp();
   list    lstTime  = llParseString2List(strTimestamp, ["-", ":", ".", "T"], []);
   integer intYear  = llList2Integer(lstTime, 0);
   integer intMonth = llList2Integer(lstTime, 1);
   integer intDay   = llList2Integer(lstTime, 2);
   integer intHour  = llList2Integer(lstTime, 3);
   string  strYear;
   string  strMonth;
   string  strDay;
   string  strHour;
   if (intOffset == 0) { return strTimestamp; }
   if (intOffset < -24 || intOffset > 24) {
       intOffset = ((integer)llGetWallclock() - (integer)llGetGMTclock()) / 3600;
   }
   // Add a day to February in leap years
   if (intYear % 4 == 0 && (intYear % 100 != 0 || intYear % 400 == 0)) {
       lstDays = llListReplaceList(lstDays, [29], 2, 2);
   }
   if (intOffset < 0) {
       if (intHour < 0) { 
           intHour+= 24;
           --intDay;
       }
       if (intDay < 1) {
           intDay = llList2Integer(lstDays, --intMonth);
       }
       if (intMonth < 1) {
           intMonth = 12;
           --intYear;
       }
   }
   if (intOffset > 0) {
       if (intHour > 23) {
           intHour-= 24;
           ++intDay;
       }
       if (intDay > llList2Integer(lstDays, intMonth)) {
           intDay = 1;
           ++intMonth;
       }
       if (intMonth > 12) {
           intMonth = 1;
           ++intYear;
       }
   }
   strYear  = (string)intYear;
   strMonth = (string)intMonth;
   strDay   = (string)intDay;
   strHour  = (string)intHour;
   if (llStringLength(strMonth) < 2) { strMonth = "0" + strMonth; }
   if (llStringLength(strDay)   < 2) { strDay   = "0" + strDay;   }
   if (llStringLength(strHour)  < 2) { strHour  = "0" + strHour;  }
   return
       strYear                   + "-" + 
       strMonth                  + "-" + 
       strDay                    + "T" + 
       strHour                   + ":" + 
       llList2String(lstTime, 4) + ":" + 
       llList2String(lstTime, 5) + "." + 
       llList2String(lstTime, 6) + "Z";

} </lsl>