h6. [[TerritoryManager]] h6(. » [[Territory SWI Calls|SWI Calls]] h6((. » [[Territory_DaylightSaving]] h6(((. » Territory_DaylightSaving 3 h2. Territory_DaylightSaving 3 h5. (SWI &43077) |_<^{width:4em}. Entry | | |<^. R0 |<^. [[Territory Numbers|Territory number]], or -1 for current territory | |<^. R1 |<^. 3 (reason code) | |<^. R2 |<^. Timezone within territory | |<^. R3 |<^. Pointer to 28-byte UTC [[Date Time Ordinal Block]] | |_<^{width:4em}. Exit | | |/2<^. R0 |<^. DST state flags: | |<^. Bit 0: True/false for whether the given date/time lies within a DST period | h4. Use This SWI can be used to check whether a UTC date/time, specified as ordinals, is subject to daylight saving time for a given territory + timezone. h4. Notes The day-of-week and day-of-year members of the ordinal block are unused and do not need to be present. This SWI was introduced in TerritoryManager 0.47 h4. See also * [[Territory_DaylightSaving]] * [[Territory_DaylightSaving 4]]