What is 1 AM EST in CST?

Is it the same all year?

Yes. 1 AM EST is always 12 AM CST, because both change their clocks on the same dates.

Eastern Time switches between EST and EDT for daylight saving time; people often say EST all year. Central Time switches between CST and CDT for daylight saving time; people often say CST all year.

Questions

1 AM EST in other time zones

Time zone	Time
Central Time CST/CDT	12 AM
Mountain Time MST/MDT	11 PM (Tue)
Pacific Time PST/PDT	10 PM (Tue)
Alaska Time AKST/AKDT	9 PM (Tue)
Hawaii Time HST	7 PM (Tue)
Greenwich Mean Time GMT	5 AM
Coordinated Universal Time UTC	5 AM
Central European Time CET/CEST	7 AM
Eastern European Time EET/EEST	8 AM
India Standard Time IST	10:30 AM
Japan Standard Time JST	2 PM
Australian Eastern Time AEST/AEDT	4 PM
Singapore Time SGT	1 PM
Philippine Time PHT	1 PM
Moscow Time MSK	8 AM
Gulf Standard Time GST	9 AM

Based on the clocks on Wednesday, October 14, 2026.