Convert time between US time zones. Quickly find what time it is in Eastern, Central, Mountain, Pacific, Alaska, and Hawaii time zones.
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Enter Your Measurements
Results
Target Time (Hour)
11
:00
Hour Difference
-3
hrs
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Formula
Target Hour = (Source Hour + Target Offset − Source Offset + 24) mod 24
How to Use This Calculator
How to Use
- 1
Enter the hour in your source time zone (0 = midnight, 14 = 2pm).
- 2
Select your source time zone.
- 3
Select the target time zone.
- 4
Get the converted hour.
Frequently Asked Questions
Frequently Asked Questions
Does this account for Daylight Saving Time?
The offsets shown are standard time. During Daylight Saving Time (March–November), US zones are UTC-4 (ET), UTC-5 (CT), UTC-6 (MT), UTC-7 (PT). Hawaii does not observe DST.
What is UTC?
UTC (Coordinated Universal Time) is the universal time standard. All time zones are defined as offsets from UTC. No country uses UTC as their standard time.
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About This Calculator
This calculator uses the formula: Target Hour = (Source Hour + Target Offset − Source Offset + 24) mod 24. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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<iframe src="https://calcsmart.io/embed/time-zone-converter" width="100%" height="520" frameborder="0" style="border-radius:8px;border:1px solid #e5e7eb" title="US Time Zone Converter"></iframe>Free to embed. Attribution link included automatically.