JST to WIB Converter
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Quick answers
Selected conversion
9:00 pm21:00 JST (UTC+9), Oct 18, 2026 = 7:00 pm19:00 WIB (UTC+7), Oct 18, 2026
JST is 2 hours ahead of WIB.
JST and WIB examples
These examples always use JST (UTC+9) and WIB (UTC+7). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
JST is 2 hours ahead of WIB.
How the time difference changes
JST is 2 hours ahead of WIB year-round.
Working hours of 9:00 am to 6:00 pm in JST correspond to 7:00 am to 4:00 pm in WIB.Working hours of 09:00 to 18:00 in JST correspond to 07:00 to 16:00 in WIB.
Compare JST time with WIB time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Japan Standard Time is 2 hours ahead of Western Indonesian Time.
9:00 pm21:00 in JST is 7:00 pm19:00 in WIB
JST to WIB call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in JST which corresponds to 9am-4pm09:00-16:00 in WIB
9:00 pm21:00 Japan Standard Time (JST). Offset UTC +9:00 hours
7:00 pm19:00 Western Indonesian Time (WIB). Offset UTC +7:00 hours
9:00 pm21:00 JST / 7:00 pm19:00 WIB
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| JST | WIB |
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Japan Standard Time
Offset: JST is 9 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Japan
Principal Cities: The largest city in the JST time zone is Tokyo in Japan, with about 9.733 million people. Other major cities in this time zone include Yokohama, Osaka, Nagoya, Sapporo.
Daylight Saving: Clocks in Japan Standard Time (JST) do not change for daylight saving time, so JST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in Japan: Japan time now
JST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Western Indonesian Time
Offset: WIB is 7 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Indonesia
Principal Cities: The largest city in the WIB time zone is Jakarta in Indonesia, with about 8.54 million people. Other major cities in this time zone include Surabaya, Bekasi, Bandung, Medan.
Daylight Saving: Clocks in Western Indonesian Time (WIB) do not change for daylight saving time, so WIB stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
WIB representations, usage and related time zones
- +07 - basic short
- +0700 - basic
- +07:00 - extended
- +0700 - sign character (+) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the east of the zero meridian.
- Golf - Military abbreviation for WIB
- G - short form of 'Golf'
- Asia/Jakarta
- Asia/Pontianak
- CXT - Christmas Island Time
- DAVT - Davis Time
- G - Golf Time Zone
- HOVT - Hovd Time
- ICT - Indochina Time
- KRAT - Krasnoyarsk Time
- NOVST - Novosibirsk Summer Time
- NOVT - Novosibirsk Time
- OMSST - Omsk Summer Time
- WIB - Western Indonesian Time