Time Difference

Surabaya vs Lusaka Time Difference

Compare the current local time in Surabaya, Indonesia and Lusaka, Zambia.

Live local timeDST awareUTC offsets

From

Surabaya

Indonesia

5:39 AM

Mon, Aug 17

UTC+7Asia/Jakarta

Difference

5 hours

Swap

Lusaka

Zambia

12:39 AM

Mon, Aug 17

UTC+2Africa/Lusaka

Current difference

Lusaka is currently 5 hours 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 Lusaka hour by hour

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

24-hour day

Best working-hours overlap

2:00 PM – 6:00 PM in Surabaya

corresponds to 9:00 AM – 1:00 PM in Lusaka.

4 hours overlap

Surabaya

Asia/Jakarta

Lusaka

Africa/Lusaka

Availability

12:00 AM

Mon, Aug 17

7:00 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

8:00 PM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

9:00 PM

Previous day

Sun, Aug 16

Night

3:00 AM

Mon, Aug 17

10:00 PM

Previous day

Sun, Aug 16

Night

4:00 AM

Mon, Aug 17

11:00 PM

Previous day

Sun, Aug 16

Night

5:00 AM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

8:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

9:00 AM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

10:00 AM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

11:00 AM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

12:00 PM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Possible

1:00 PM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

2:00 PM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

6:00 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 Lusaka from Surabaya

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

Surabaya

2:39 PM – 6:39 PM

Indonesia

Best overlap

Lusaka

9:39 AM – 1:39 PM

Zambia

The best time to call Lusaka from Surabaya is between 2:39 PM and 6:39 PM in Surabaya. This corresponds to 9:39 AM – 1:39 PM in Lusaka.

Other reasonable windows

Surabaya

12:39 PM – 2:39 PM

Lusaka

7:39 AM – 9:39 AM

Surabaya

6:39 PM – 9:39 PM

Lusaka

1:39 PM – 4:39 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 Lusaka time difference explained

Current local-time relationship

Lusaka is currently 5 hours behind Surabaya.

Surabaya uses Asia/Jakarta and currently has an offset of UTC+7. Lusaka uses Africa/Lusaka and currently has an offset of UTC+2.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 2:00 PM to 6:00 PM in Surabaya, corresponding to 9:00 AM–1:00 PM in Lusaka.

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 Lusaka.

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Local clocks

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Current time in Surabaya Current time in Lusaka

FAQ

Surabaya to Lusaka time difference FAQ

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

What is the time difference between Surabaya and Lusaka?

The current time difference between Surabaya and Lusaka is 5 hours. Lusaka is currently 5 hours behind Surabaya.

Is Lusaka ahead of or behind Surabaya?

Lusaka is currently 5 hours behind Surabaya.

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

Using the current UTC offsets, 9:00 AM in Surabaya corresponds to 4:00 AM in Lusaka. The exact difference can change when daylight-saving rules change.

What is the best time to call Lusaka from Surabaya?

Typical 9:00 AM–6:00 PM business hours overlap between 2:00 PM and 6:00 PM in Surabaya. This corresponds to 9:00 AM–1:00 PM in Lusaka.

Can the time difference between Surabaya and Lusaka change?

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