Time Difference: South Carolina vs. Arizona
3 Hours (Most of the Year)
| Period | South Carolina | Arizona | Difference |
|---|
| March–November (DST) | EDT (UTC-4) | MST (UTC-7) | 3 hours |
| November–March (Standard) | EST (UTC-5) | MST (UTC-7) | 2 hours |
Why Arizona Is Different
- Arizona (except Navajo Nation) does NOT observe Daylight Saving Time
- Stays on Mountain Standard Time (MST, UTC-7) year-round
- South Carolina does observe DST (EDT/EST)
Practical Examples
- Summer (July): 12:00 PM in Charleston → 9:00 AM in Phoenix
- Winter (January): 12:00 PM in Charleston → 10:00 AM in Phoenix
- Navajo Nation (NE AZ): Observes DST → matches SC in summer
Scheduling Tip
Use "Mountain Time (no DST)" or "America/Phoenix" timezone in calendar apps to avoid errors.
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