What is the time difference between Sydney and Mexico City?

Mexico City is 16 hours 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 Mexico City from Sydney?

Between 09:00–10:00 in Sydney, which is 17:00–18:00 in Mexico City. 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 Mexico City observe daylight saving time?

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

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

It is 20:00 in Mexico City, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Sydney and Mexico City use?

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

Convert Sydney time to Mexico City time

Right now Mexico City runs 16 hours behind Sydney. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

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

Every hour of a day in Sydney, and what the clock reads in Mexico City at that same moment.

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

Daylight saving time

Mexico City 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

Mexico City

Does not observe daylight saving time

Standard: UTC-6

When you can actually talk

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

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

Reference

The zone identifiers and offsets behind everything above.

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

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

Common questions

What is the time difference between Sydney and Mexico City?: Mexico City is 16 hours 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 Mexico City from Sydney?: Between 09:00–10:00 in Sydney, which is 17:00–18:00 in Mexico City. 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 Mexico City observe daylight saving time?: No. Mexico City stays on UTC-6 all year, so its clocks never move.
If it is midday in Sydney, what time is it in Mexico City?: It is 20:00 in Mexico City, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Sydney and Mexico City use?: Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Mexico City uses America/Mexico_City, currently UTC-6 (CST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.