Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets. To convert CST to PST, you have to subtract two hours. Time zone abbreviations for both Standard Time and Daylight Saving Time are shown exactly as they appear in the database. Central Standard Time (CST) is 2 hours ahead of Pacific Standard Time (PST). The UTC offsets are based on the current or upcoming database rules. For zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the STD offset. This table does not attempt to document any of the historical data which resides in the database. Standard Time ( STD) and Daylight Saving Time ( DST) offsets from UTC in hours and minutes. The user can change the time zone at any time. The UTC offsets are based on the current or upcoming database rules. 13 minutes to read 7 contributors Feedback In this article Get a current list of time zones Change the default time zone in an image Time zones When the first user logs into Windows 10, Windows 11, or Windows Server and identifies their region, Windows sets the time zone. Standard Time ( STD) and Daylight Saving Time ( DST) offsets from UTC in hours and minutes.įor zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the STD offset. Historical data for such zones is still preserved in the source code, but it is not included when compiling the database with standard options. The Central Time zone is an area 6 hours behind Greenwich Mean Time ( GMT-6) during the winter months (referred to as Central Standard Time or CST) and 5 hours behind Greenwich Mean Time ( GMT-5) during the summer months (referred to as Central Daylight Time or CDT). The dagger symbol (†) signifies that the zone was canonical in a previous version of the database. Link - An alternative name (alias) which links to a canonical zone.Canonical - The primary, preferred zone name.This is a list of time zones from release 2023c of the tz database. World map showing time zones from the tz database version 2017a
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