Lines Matching refs:DST
121 // In this way, only one check, for a DST cache miss, is needed.
125 // Because computing the DST offset is an expensive operation,
126 // we keep a cache of the last computed DST offset along with a time interval
130 // Cached DST offset.
143 // In Egypt in 2010 they decided to suspend DST during Ramadan. This
144 // led to a short interval where DST is in effect from September 10 to
182 // the point in time where the DST offset change occurred. Updated
188 // The interval contains a DST offset change and the given time is
205 // Compute the DST offset for the time and shrink the cache interval
206 // to only contain the time. This allows fast repeated DST offset
252 // Inline the DST offset cache checks for speed.
506 // We also need to invalidate the DST cache as the new timezone may have
507 // different DST times.
1010 // Reset the DST offset cache:
