What is the time difference between Sydney and Kathmandu?

Kathmandu is 4 hours 15 minutes behind Sydney. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Kathmandu from Sydney?

Between 13:15–18:00 in Sydney, which is 09:00–13:45 in Kathmandu. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Sydney observe daylight saving time?

Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

Does Kathmandu observe daylight saving time?

No. Kathmandu stays on UTC+5:45 all year, so its clocks never move.

If it is midday in Sydney, what time is it in Kathmandu?

It is 07:45 in Kathmandu, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Sydney and Kathmandu use?

Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Kathmandu uses Asia/Kathmandu, currently UTC+5:45. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Sydney time to Kathmandu time

Kathmandu is 4 hours 15 minutes behind Sydney right now, so midday in Sydney lands in the morning in Kathmandu.

Convert a time

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Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Sydney, across for Kathmandu.

Sydney	Kathmandu
00:00	19:45previous day
01:00	20:45previous day
02:00	21:45previous day
03:00	22:45previous day
04:00	23:45previous day
05:00	00:45
06:00	01:45
07:00	02:45
08:00	03:45
09:00	04:45
10:00	05:45
11:00	06:45
12:00	07:45
13:00	08:45
14:00	09:45
15:00	10:45
16:00	11:45
17:00	12:45
18:00	13:45
19:00	14:45
20:00	15:45
21:00	16:45
22:00	17:45
23:00	18:45

Daylight saving time

Kathmandu keeps one offset all year while Sydney moves twice. That is the whole reason this difference is seasonal.

Sydney

Observes daylight saving time

Standard: UTC+10
Daylight: UTC+11
Next change: 2026-10-04 +60m

Kathmandu

Does not observe daylight saving time

Standard: UTC+5:45

When you can actually talk

You have 4 hours 45 minutes of shared working time: 13:15–18:00 in Sydney, which is 09:00–13:45 in Kathmandu.

Sydney 13:15–18:00Kathmandu 09:00–13:45

Reference

The zone identifiers and offsets behind everything above.

	Sydney	Kathmandu
IANA zone	Australia/Sydney	Asia/Kathmandu
Abbreviation	AEST	UTC+5:45
Standard offset	UTC+10	UTC+5:45
Daylight offset	UTC+11	—
Clock changes this year	2	0
Country	Australia	Nepal

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Sydney and Kathmandu?: Kathmandu is 4 hours 15 minutes behind Sydney. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Kathmandu from Sydney?: Between 13:15–18:00 in Sydney, which is 09:00–13:45 in Kathmandu. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Sydney observe daylight saving time?: Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
Does Kathmandu observe daylight saving time?: No. Kathmandu stays on UTC+5:45 all year, so its clocks never move.
If it is midday in Sydney, what time is it in Kathmandu?: It is 07:45 in Kathmandu, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Sydney and Kathmandu use?: Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Kathmandu uses Asia/Kathmandu, currently UTC+5:45. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.