Time Difference

Surabaya vs Surat Time Difference

Compare the current local time in Surabaya, Indonesia and Surat, India.

Live local timeDST awareUTC offsets

From

Surabaya

Indonesia

5:35 AM

Mon, Aug 17

UTC+7Asia/Jakarta

Difference

1h 30m

Swap

Surat

India

4:05 AM

Mon, Aug 17

UTC+5:30Asia/Kolkata

Current difference

Surat is currently 1 hour 30 minutes behind Surabaya.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Surabaya and Surat hour by hour

See how a full local day in Surabaya, Indonesia maps to Surat, India. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

11:00 AM – 6:00 PM in Surabaya

corresponds to 9:30 AM – 4:30 PM in Surat.

7 hours overlap

Surabaya

Asia/Jakarta

Surat

Asia/Kolkata

Availability

12:00 AM

Mon, Aug 17

10:30 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

11:30 PM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

12:30 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

1:30 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

2:30 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

3:30 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

4:30 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

5:30 AM

Mon, Aug 17

Night

8:00 AM

Mon, Aug 17

6:30 AM

Mon, Aug 17

Night

9:00 AM

Mon, Aug 17

7:30 AM

Mon, Aug 17

Possible

10:00 AM

Mon, Aug 17

8:30 AM

Mon, Aug 17

Possible

11:00 AM

Mon, Aug 17

9:30 AM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

10:30 AM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

11:30 AM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

12:30 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

1:30 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

2:30 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

3:30 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

4:30 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

5:30 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

6:30 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

7:30 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

8:30 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

9:30 PM

Mon, Aug 17

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Surat from Surabaya

Compare typical business hours in Surabaya, Indonesia and Surat, India to find a practical time for calls, meetings or international coordination.

Surabaya

10:35 AM – 6:35 PM

Indonesia

Best overlap

Surat

9:05 AM – 5:05 PM

India

The best time to call Surat from Surabaya is between 10:35 AM and 6:35 PM in Surabaya. This corresponds to 9:05 AM – 5:05 PM in Surat.

Other reasonable windows

Surabaya

8:35 AM – 10:35 AM

Surat

7:05 AM – 9:05 AM

Surabaya

6:35 PM – 9:35 PM

Surat

5:05 PM – 8:05 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Surabaya and Surat time difference explained

Current local-time relationship

Surat is currently 1 hour and 30 minutes behind Surabaya.

Surabaya uses Asia/Jakarta and currently has an offset of UTC+7. Surat uses Asia/Kolkata and currently has an offset of UTC+5:30.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 10:30 AM to 6:00 PM in Surabaya, corresponding to 9:00 AM–4:30 PM in Surat.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Surabaya and Surat.

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Local clocks

Explore each city

Current time in Surabaya Current time in Surat

FAQ

Surabaya to Surat time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Surabaya and Surat.

What is the time difference between Surabaya and Surat?

The current time difference between Surabaya and Surat is 1h 30m. Surat is currently 1 hour and 30 minutes behind Surabaya.

Is Surat ahead of or behind Surabaya?

Surat is currently 1 hour and 30 minutes behind Surabaya.

What time is it in Surat when it is 9:00 AM in Surabaya?

Using the current UTC offsets, 9:00 AM in Surabaya corresponds to 7:30 AM in Surat. The exact difference can change when daylight-saving rules change.

What is the best time to call Surat from Surabaya?

Typical 9:00 AM–6:00 PM business hours overlap between 10:30 AM and 6:00 PM in Surabaya. This corresponds to 9:00 AM–4:30 PM in Surat.

Can the time difference between Surabaya and Surat change?

Yes. The time difference can change if Surabaya or Surat changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Asia/Jakarta and Asia/Kolkata for date-aware calculations.