Is EST the same as EDT?
No. EST and EDT use different UTC offsets and apply in different seasons.
EST vs EDT
EST and EDT are both Eastern Time labels, but they apply in different parts of the year.
Direct answer
EST and EDT are both Eastern Time labels, but they apply in different parts of the year.
Common US presets: ET, CT, MT, and PT. Use exact IANA zones for precise conversion around DST changes.
US preset shortcuts
US examples
- EST is typically UTC-05:00 in standard time months.
- EDT is typically UTC-04:00 during daylight saving months.
- Use America/New_York for date-accurate conversion.
Popular US links
US section hubs
Frequently asked questions
Which should I use in scheduling?
Use an IANA zone like America/New_York to avoid manual DST mistakes.
Does every US Eastern location observe DST?
Most do, but there can be exceptions in some territories.