Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between cst and est?
Central Standard Time (cst) is UTC-5 and Eastern Standard Time (est) is UTC-4. The difference between them is 1 hours.
Where is cst used?
Central Standard Time (cst) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago. Note: cst is ambiguous and may refer to other timezones.
Where is est used?
Eastern Standard Time (est) is used in USA and surrounding regions. The IANA timezone identifier is America/New_York.
How do I convert cst to est?
Use the interactive converter above. Drag the time slider to any cst time and the est equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
CST (Chicago) is 1 hour behind EST (New York). When CST (Chicago) clocks hit noon, EST (New York) reads 13:00.
CST (Chicago) observes America/Chicago and EST (New York) observes America/New_York — a 1 hour gap between them.
Shared working hours
Every working day, CST (Chicago) and EST (New York) are both in business hours for 7 hours simultaneously.
00:0006:0012:0018:0024:00
CST (Chicago)
EST (New York)
Overlap (7h)
Optimal meeting slots
CST (Chicago) and EST (New York) share 7 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
09:00 Chicago / 10:00 New York✓ Both working
10:00 Chicago / 11:00 New York✓ Both working
11:00 Chicago / 12:00 New York✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
CST (Chicago)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
EST (New York)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Working across CST (Chicago) and EST (New York)
Coordinating between CST (Chicago) (USA) and EST (New York) (USA) means working around a 1-hour time difference. The 7-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 Best practice for cross-timezone meetings
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Schedule at 09:00–10:00 (CST (Chicago)) for a 10:00–11:00 slot in EST (New York) — the sweet spot where both teams are working.
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Schedule at 10:00–11:00 (CST (Chicago)) for a 11:00–12:00 slot in EST (New York) — the sweet spot where both teams are working.
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Schedule at 11:00–12:00 (CST (Chicago)) for a 12:00–13:00 slot in EST (New York) — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any CST (Chicago) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.