CST to EST
+1hCST
CSTSOURCEEST
ESTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and EST on the World Map
The map below highlights the CST (Central Standard Time) and EST (Eastern Standard Time) timezone regions across the globe.
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.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
Time Conversion Guide: CST to EST
CST runs on Central Standard Time (CST) at UTC-06:00. EST runs on Eastern Standard Time (EST) at UTC-05:00. That puts CST 1 hour ahead of EST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in CST it is 10:00 AM in EST. Midnight in CST is 1:00 AM in EST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CST to EST time conversion table
| CST (CST) | EST (EST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert CST to EST time
- Scheduling a call from CST to EST: a 10:00 AM start in CST lands at 11:00 AM in EST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CST and EST are inside the 9-to-5 working day between 9:00 AM and 4:00 PM CST time (10:00 AM–5:00 PM EST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking EST local time against CST keeps pickup windows and arrival estimates honest across the +1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM CST" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM CST as the recurring meeting window if you work primarily from CST and need EST colleagues present.
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.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
Best time to call between CST and EST
Both CST and EST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM CST, which is 10:00 AM–5:00 PM EST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CST and EST share 7 hours of working-hours overlap (9:00 AM–4:00 PM CST), so scheduling a live meeting is straightforward.
CST is 1 hour ahead of EST (CST UTC-06:00 → EST UTC-05:00). The shared working window is 9:00 AM–4:00 PM CST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CST
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
EST
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
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 CST and EST?
CST (CST, UTC-06:00) is 1 hour ahead of EST (EST, UTC-05:00). The gap is currently +1h.
How do I convert CST time to EST time?
Add +1h to CST local time. For example, 9:00 AM in CST is 10:00 AM in EST.
What time is it in EST right now?
EST uses EST at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from CST.
What is the best time to call EST from CST?
Call between 9:00 AM and 4:00 PM CST — that maps to 10:00 AM–5:00 PM EST and keeps both parties inside the working day.
Which is ahead, CST or EST?
CST is 1 hour ahead of EST. When it is 12:00 PM in CST it is 1:00 PM in EST.
Does daylight saving time affect the CST–EST difference?
Neither zone observes daylight saving time, so the +1h offset between CST and EST is fixed all year.
Which other cities share CST's time zone?
CST also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.
Which countries use CST, CST's zone?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, Costa Rica, Nicaragua and 1 more.
Is there a day difference between CST and EST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between CST and EST?
EST is +1h from CST.
What timezone is CST in?
CST operates on its local timezone.
What timezone is EST in?
EST operates on its local timezone.
Which countries use CST (Central Standard Time)?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, and 3 more countries.
Does CST observe daylight saving time?
Yes, CST switches to CDT during summer months.
What are some interesting facts about CST?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
Which cities are in the EST timezone?
Major cities in the EST timezone include New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EST?
Eastern Standard Time (EST) is at UTC-05:00. During daylight saving time, it shifts to EDT.
What should I know about the EST timezone?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
When is it midnight in CST, what time is it in EST?
When it is 12:00 AM (midnight) in CST (CST), it is +1h later in EST (EST).
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See every conversion from CST →·See every conversion from EST →