Sydney to Mexico City
-16hSydney
AESTSOURCEMexico City
CSTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and CST on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and CST (Central Standard Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •CST covers 20 US states fully or partially.
- •Chicago and Houston are the two largest cities in the Central Time Zone.
- •Mexico City, one of the world's most populous cities, operates on CST.
- •CST is 1 hour behind EST and 2 hours ahead of PST.
About Sydney
WikipediaSydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
Sydney is one of the first major cities to welcome the New Year.
About Mexico City
WikipediaMexico City operates on Central Time (CST/CDT), same as Chicago. As North America's largest city, Mexico City bridges US and Latin American business hours.
Mexico City is the oldest capital city in the Americas.
Sydney to Mexico City Time Difference – Complete Guide
Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Mexico City runs on Central Standard Time (CST) at UTC-06:00. That puts Sydney 16 hours behind Mexico City — a difference of -16h at the current offsets.
In practice, when it is 9:00 AM in Sydney it is 5:00 PM in Mexico City on the previous day. Midnight in Sydney is 8:00 AM in Mexico City. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Sydney to Mexico City time conversion table
| Sydney (AEST) | Mexico City (CST) | Day |
|---|---|---|
| 12:00 AM | 8:00 AM | previous day |
| 6:00 AM | 2:00 PM | previous day |
| 7:00 AM | 3:00 PM | previous day |
| 8:00 AM | 4:00 PM | previous day |
| 9:00 AM | 5:00 PM | previous day |
| 12:00 PM | 8:00 PM | previous day |
| 3:00 PM | 11:00 PM | previous day |
| 5:00 PM | 1:00 AM | same day |
| 6:00 PM | 2:00 AM | same day |
| 9:00 PM | 5:00 AM | same day |
Why people convert Sydney to Mexico City time
- Scheduling a call from Sydney to Mexico City: a 10:00 AM start in Sydney lands at 6:00 PM in Mexico City the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -16h gap: Sydney and Mexico City have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Mexico City is 5:00 PM in Sydney.
- Watching a live event or market open: Sydney viewers need 5:00 PM in Mexico City to catch a 9:00 AM start there, and 4:00 PM if the event is anchored to Sydney.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -16h gap is not.
- With a -16h gap there is no shared 9-to-5 window, so alternate the early start: one week Sydney takes the early slot, the next week Mexico City does.
- Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -16h gap.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
About CST (Central Standard Time)
Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.
Best time to call between Sydney and Mexico City
With a -16h offset there is no overlap inside a normal 9 AM – 5 PM day. Mexico City opens at 9:00 AM CST, which is 5:00 PM in Sydney, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Sydney and Mexico City have no shared working hours because of the -16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Sydney is 16 hours behind Mexico City (AEST UTC+10:00 → CST UTC-06:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Sydney
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Mexico City
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Sydney and Mexico City?
Sydney (AEST, UTC+10:00) is 16 hours behind Mexico City (CST, UTC-06:00). The gap is currently -16h.
How do I convert Sydney time to Mexico City time?
Add -16h to Sydney local time. For example, 9:00 AM in Sydney is 5:00 PM in Mexico City (previous day).
What time is it in Mexico City right now?
Mexico City uses CST at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -16h offset from Sydney.
What is the best time to call Mexico City from Sydney?
There is no shared working-hours window because of the -16h gap. The closest option is 1:00 PM in Sydney, which is 9:00 PM in Mexico City.
Which is behind, Sydney or Mexico City?
Sydney is 16 hours behind Mexico City. When it is 12:00 PM in Sydney it is 8:00 PM in Mexico City.
Do Sydney and Mexico City use different time zones?
Sydney (Australia) uses AEST at UTC+10:00, while Mexico City (Mexico) uses CST at UTC-06:00. The IANA identifiers are Australia/Sydney and America/Mexico_City.
Does daylight saving time affect the Sydney–Mexico City difference?
Neither zone observes daylight saving time, so the -16h offset between Sydney and Mexico City is fixed all year.
Which other cities share Sydney's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, Sydney's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between Sydney and Mexico City?
Sometimes. The -16h gap is large enough that 8:00 PM or later in Sydney already falls on the in Mexico City.
What is the time difference between Sydney and Mexico City?
Mexico City is -16h from Sydney.
What timezone is Sydney in?
Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
What timezone is Mexico City in?
Mexico City operates on Central Time (CST/CDT), same as Chicago. As North America's largest city, Mexico City bridges US and Latin American business hours.
What are the business hours in Sydney?
Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.
What are the business hours in Mexico City?
Standard business hours in Mexico City are 9:00 AM - 6:00 PM CST.
What is the best time to schedule a call between Sydney and Mexico City?
The best overlap for a call is when both cities are in business hours. Sydney works 9:00 AM - 5:00 PM AEST and Mexico City works 9:00 AM - 6:00 PM CST (-16h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Sydney and Mexico City?
Sydney uses AUD (A$) while Mexico City uses MXN ($). Check current exchange rates when planning travel or business between these cities.
How do Sydney and Mexico City compare in size?
Sydney has a population of approximately 5.4 million (metro: 5.4 million), while Mexico City has approximately 9.2 million (metro: 21.8 million).
What are the major landmarks in Sydney and Mexico City?
Sydney is known for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach. Mexico City is famous for Zócalo, Palacio de Bellas Artes, Chapultepec Castle.
Do Sydney and Mexico City have stock exchanges?
Yes. Sydney has the ASX (Australian Securities Exchange) and Mexico City has the BMV (Bolsa Mexicana de Valores). The -16h time difference affects trading hour overlaps between these exchanges.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
Which cities are in the CST timezone?
Major cities in the CST timezone include Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis.
What is the UTC offset for CST?
Central Standard Time (CST) is at UTC-06:00. During daylight saving time, it shifts to CDT.
What should I know about the CST timezone?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
When is it midnight in Sydney, what time is it in Mexico City?
When it is 12:00 AM (midnight) in Sydney (AEST), it is -16h later in Mexico City (CST).
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