![]() ![]() This is equivalent to EDT (Eastern Daylight Time). The offset during daylight saving time (which is -04:00).This is equivalent to EST (Eastern Standard Time). The offset during standard time (which is -05:00).The database contains the following crucial information about this time zone: This database is the key to performing time conversions.įor example, America/New_York is a time zone from this database. The time zones in this database come coupled with information about daylight saving time along with standard time. This database treats time zones as national regions instead of using longitude-based time zones. ![]() The solution to this problem is a database of time zones called the time zone database. For this reason, these longitude-based time zones can’t be used directly for time conversions. ![]() We also saw that determining the time in a given region gets complicated because of daylight saving. These time zones are based on the 15-degree division of longitude and do not account for daylight saving. We saw some examples of time zones earlier: EST, CST, CDT, and GMT. So regions that have the same local time during the fall (when daylight saving is not practiced) may have different local times during the summer (when daylight saving is practiced). One thing to note is that not all regions that use the same standard time or are in the same time zone will practice daylight saving. This is the time that we used to define time zones. This is the time used in a region when daylight saving time is not in use. For example, regions in Central Standard Time (CST) that also practice daylight saving will change to CDT (Central Daylight Time). Whenever a region starts daylight saving, it changes its time zone to reflect this. “Daylight saving time (DST) is the practice of setting the clocks forward one hour from standard time during the summer months and back again in the fall, in order to make better use of natural daylight.”. They are daylight saving time and standard time. There are two types of time used throughout the world. This is just because of the lack of a better name. I know that “types” of time sounds strange. ![]()
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