Timezones in IndonesiaThere are 3 different timezones in Indonesia. Countries with a large distance from west to east are often devided into two or more timezones to adjust daytimes to the position of the sun. Timezones are always computed relative to UTC, the "Universal Time Coordinated".
In Indonesia, there is a time difference of up to two hours between the east and the west. Indonesia has no time difference between summer and winter. A daylight saving time doesn't exist.
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Current time in Jakarta:
Timezones by region
|Region||UTC||Standard time||Daylight saving time|
|Jakarta||+7||Western Indonesia Time (WIT)||none|
|Jayapura||+9||Eastern Indonesia Time (EIT)||none|
|Makassar||+8||Central Indonesia Time (CIT)||none|
|Pontianak||+7||Western Indonesia Time (WIT)||none|
No daylight saving time in IndonesiaDue to the sun's orbit around the equator, the days are longer in summer (November to February in the southern hemisphere). Countries that switch to daylight saving time in the summer months align the daylight phase with the human rhythm. Unused bright morning hours are thus shifted into the evening (more information on daylight saving time here).
Due to its proximity to the equator, the impact in Indonesia would not be particularly large. Jakarta is located just 690 km from the equator. A day in midsummer would then not last from 05:35 to 18:06, but from 06:35 to 19:06. The effect would be quite noticeable in the evening, but the sun rising later in the morning falls at a time when many people are already awake. Thus, daylight saving time was never introduced in Indonesia.