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100% free

CST to EST

Convert Central Time (CST/CDT) to Eastern Time (EST/EDT), with daylight saving handled automatically.

Free foreverPrivate — runs in your browserNo sign-upNo limits

How to use the CST to EST tool

  1. Pick the date and time in Central Time, or click Use current time.
  2. The Eastern Time appears instantly, with CST/CDT and EST/EDT applied correctly.
  3. Use the quick reference table for common times, or change either time zone.

Central vs Eastern Time

Eastern Time is 1 hour ahead of Central Time: 9:00 AM in Chicago is 10:00 AM in New York. Both zones change for daylight saving time on the same dates, so standard time is CST → EST and summer time is CDT → EDT.

Note: “CST” is also used for China Standard Time. This converter uses US Central Time; choose Shanghai from the list for China.

CST to EST: free, fast and private

Convert Central Time (CST/CDT) to Eastern Time (EST/EDT), with daylight saving handled automatically — for free, on any device. Whether you are working with meetings, calls, live events and travel plans, the CST to EST tool gets it done in seconds without installing anything.

Because CST to EST runs locally in your browser, it is fast and private at the same time — there is no upload to wait for and no copy of your data left behind.

Helpful tips

  • Daylight saving time changes the clocks — always check the date as well as the time.
  • Share the time in both zones when you invite people to a meeting.
  • Use the quick reference table to plan a whole day at a glance.

Related free tools: RAR to ZIP, Archive Converter, PST to EST.

More questions about CST to EST

Is my data sent anywhere?

No. Everything is processed on your device inside the browser, so it stays private.

Do I need to create an account?

No account is needed. Open the page and use the tool straight away.

Is there a limit on how often I can use it?

There is no usage limit. Use CST to EST as often as you like, for personal or business work.

Frequently asked questions

What is the time difference between CST and EST?

Eastern Time is 1 hour ahead of Central Time.

Does it handle daylight saving time?

Yes. CDT and EDT are applied automatically based on the date you choose.

Is the CST to EST tool really free?

Yes — completely free, forever. There is no sign-up, no payment, no watermark and no daily limit.