World time zones have a positive or negative offset computed from Coordinated Universal Time (UTC), or Greenwich Mean Time (GMT). UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the Earth's slowing rotation.
Travelmath provides an online time zone converter for places all over the world. You can enter airports, cities, states, countries, or zip codes to find the time difference between any two locations. The calculator will automatically adjust for daylight saving time (DST) in the summer. You can use it as a meeting planner or a scheduler to find the best time to make international phone calls.
The tz database or zoneinfo database uses the closest city, rather than the more common Eastern, Central, Mountain or Pacific time zones in the United States.
Central Africa Time (CAT)
Zambia observes Central Africa Time (CAT), which is UTC +2:00 hours. For example:
- 4:00 pm is equal to 16:00 CAT (Central Africa Time) in Lusaka, Zambia.
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Time Differences Between Zambia and the United States
PLEASE NOTE: The United States may span multiple time zones. We are using the America/Denver time zone for reference.
If you live in United States and you want to call a friend in Zambia, you can try calling them between 10:00 PM and 2:00 PM your time, between your normal working hours and theirs. If you are in United States, but you want to reach someone in Zambia at work, you may want to try between 12:00 AM and 8:00 AM your time.
For scheduling a meeting at the best time for both parties, you should try between 8:00 AM and 9:00 AM your time in United States.
Eastern Standard Time (EST)
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America.
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
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Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people.
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead.
Quick Time Zone Conversion
Here is a quick reference for the time conversion:
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| Time in EST | Time in Zambia (CAT) |
|---|---|
| 9:00 am | 4:00 pm |
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