What is the time difference between Mexico City and Sydney?

Sydney is 16 hours ahead of Mexico City. 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 Sydney from Mexico City?

Between 17:00–18:00 in Mexico City, which is 09:00–10:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Mexico City observe daylight saving time?

No. Mexico City stays on UTC-6 all year, so its clocks never move.

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.

If it is midday in Mexico City, what time is it in Sydney?

It is 04:00 in Sydney, and already the following day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Mexico City and Sydney use?

Mexico City uses America/Mexico_City, currently UTC-6 (CST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Mexico City time to Sydney time

Sydney is 16 hours ahead of Mexico City right now, so midday in Mexico City lands in the small hours in Sydney.

Convert a time

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Date

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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 Mexico City, across for Sydney.

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

Daylight saving time

Sydney changes its clocks; Mexico City does not. The difference between them therefore shifts by an hour twice a year.

Mexico City

Does not observe daylight saving time

Standard: UTC-6

Sydney

Observes daylight saving time

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

When you can actually talk

You have 1 hour of shared working time: 17:00–18:00 in Mexico City, which is 09:00–10:00 in Sydney.

Mexico City 17:00–18:00Sydney 09:00–10:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Mexico City	Sydney
IANA zone	America/Mexico_City	Australia/Sydney
Abbreviation	CST	AEST
Standard offset	UTC-6	UTC+10
Daylight offset	—	UTC+11
Clock changes this year	0	2
Country	Mexico	Australia

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

Common questions

What is the time difference between Mexico City and Sydney?: Sydney is 16 hours ahead of Mexico City. 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 Sydney from Mexico City?: Between 17:00–18:00 in Mexico City, which is 09:00–10:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Mexico City observe daylight saving time?: No. Mexico City stays on UTC-6 all year, so its clocks never move.
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.
If it is midday in Mexico City, what time is it in Sydney?: It is 04:00 in Sydney, and already the following day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Mexico City and Sydney use?: Mexico City uses America/Mexico_City, currently UTC-6 (CST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.