World Timezones

Kolkata to Jakarta Converter

Compare Jakarta to Kolkata instead
Kolkata8:25 amMon, Jun 8
KolkataIST
India · UTC+5:30
8:25 amMon, Jun 8
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
JakartaWIB
Indonesia · UTC+7
9:55 amMon, Jun 8
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a

Offset

The time difference between Kolkata and Jakarta is 1.5 hours.

1.5 hours

Kolkata (IST) is behind Jakarta (WIB).

IST: UTC+5:30

WIB: UTC+7

Neither Kolkata nor Jakarta is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–4 PM in Kolkata (10 AM–5 PM in Jakarta).

Both teams are in working hours during this window on weekdays.

Suggested time: 12:00 PM Kolkata (1:30 PM Jakarta).

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Indonesia

  • New Year's DayThu, Jan 1
  • Good FridayFri, Apr 3
  • Easter SundaySun, Apr 5
  • Labour DayFri, May 1
  • Ascension DayThu, May 14
  • Pancasila DayMon, Jun 1
  • Independence DayMon, Aug 17
  • Christmas DayFri, Dec 25

About these zones

Kolkata uses India Standard Time (IST). To call India, dial +91.

Jakarta uses Western Indonesia Time (WIB). To call Indonesia, dial +62.

Jakarta is approximately 2,350 miles southeast of Kolkata.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

KolkataJakartaDay
12:00 am1:30 amSame day
1:00 am2:30 amSame day
2:00 am3:30 amSame day
3:00 am4:30 amSame day
4:00 am5:30 amSame day
5:00 am6:30 amSame day
6:00 am7:30 amSame day
7:00 am8:30 amSame day
8:00 am9:30 amSame day
9:00 am10:30 amSame day
10:00 am11:30 amSame day
11:00 am12:30 pmSame day
12:00 pm1:30 pmSame day
1:00 pm2:30 pmSame day
2:00 pm3:30 pmSame day
3:00 pm4:30 pmSame day
4:00 pm5:30 pmSame day
5:00 pm6:30 pmSame day
6:00 pm7:30 pmSame day
7:00 pm8:30 pmSame day
8:00 pm9:30 pmSame day
9:00 pm10:30 pmSame day
10:00 pm11:30 pmSame day
11:00 pm12:30 am+1 day

Daylight saving time

Neither Kolkata nor Jakarta observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Kolkata
Sunrise
4:52 AM
Sunset
6:21 PM
Day length
13h 28m
Jakarta
Sunrise
5:59 AM
Sunset
5:46 PM
Day length
11h 46m

Daylight overlap: 11h 23m — 4:52 AM–4:16 PM in Kolkata (6:22 AM–5:46 PM in Jakarta). Both locations are in daylight during this window.

Cities in these zones

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in India Standard Time

  • BOM
  • NMI
  • DEL
  • BLR
  • HYD
  • AMD
  • MAA
  • CCU
  • STV
  • PNQ

Airports in Western Indonesia Time

  • CGK
  • HLP
  • SUB
  • BDO
  • KNO
  • PLM
  • SRG

Related conversions

Common conversions

What is 9:00 am Kolkata in Jakarta?
9:00 am Kolkata is 10:30 am Jakarta.
What is 12:00 pm Kolkata in Jakarta?
12:00 pm Kolkata is 1:30 pm Jakarta.
What is 12:30 pm Kolkata in Jakarta?
12:30 pm Kolkata is 2:00 pm Jakarta.
What is 2:00 pm Kolkata in Jakarta?
2:00 pm Kolkata is 3:30 pm Jakarta.
What is 5:00 pm Kolkata in Jakarta?
5:00 pm Kolkata is 6:30 pm Jakarta.
What is 11:30 pm Kolkata in Jakarta?
11:30 pm Kolkata is 1:00 am Jakarta, the next day.