World Timezones

Surabaya to Sydney Converter

Compare Sydney to Surabaya instead
Surabaya9:40 amMon, Jun 8
SurabayaWIB
Indonesia · UTC+7
9:40 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
SydneyAEST
Australia · UTC+10
12:40 pmMon, Jun 8
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a

Offset

The time difference between Surabaya and Sydney is 3 hours.

3 hours

Surabaya (WIB) is behind Sydney (AEST).

WIB: UTC+7

AEST: UTC+10

Neither Surabaya nor Sydney is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–2 PM in Surabaya (12 PM–5 PM in Sydney).

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

Suggested time: 11:00 AM Surabaya (2:00 PM Sydney).

This window may shift by an hour during daylight saving time.

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

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

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

Sydney uses Australian Eastern Time (AEST, or AEDT). To call Australia, dial +61.

Sydney is approximately 3,050 miles southeast of Surabaya.

Quick reference

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

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

Daylight saving time

Sydney observes daylight saving time; Surabaya does not. The offset between the two zones changes when Sydney transitions: on Sunday, October 4, 2026, clocks spring forward from AEST to AEDT.

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

Daylight today

Surabaya
Sunrise
5:37 AM
Sunset
5:20 PM
Day length
11h 43m
Sydney
Sunrise
6:56 AM
Sunset
4:54 PM
Day length
9h 58m

Daylight overlap: 8h 17m — 5:37 AM–1:54 PM in Surabaya (8:37 AM–4:54 PM in Sydney). Both locations are in daylight during this window.

Cities in these zones

Other cities in Australian Eastern Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Western Indonesia Time

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

Airports in Australian Eastern Time

  • SYD
  • CBR

Related conversions

Common conversions

What is 9:00 am Surabaya in Sydney?
9:00 am Surabaya is 12:00 pm Sydney.
What is 12:00 pm Surabaya in Sydney?
12:00 pm Surabaya is 3:00 pm Sydney.
What is 12:30 pm Surabaya in Sydney?
12:30 pm Surabaya is 3:30 pm Sydney.
What is 2:00 pm Surabaya in Sydney?
2:00 pm Surabaya is 5:00 pm Sydney.
What is 5:00 pm Surabaya in Sydney?
5:00 pm Surabaya is 8:00 pm Sydney.
What is 11:30 pm Surabaya in Sydney?
11:30 pm Surabaya is 2:30 am Sydney, the next day.