Epoch Converter
Convert timestamps between different epoch systems used in various operating systems, protocols, and applications.
Interpreted Date
Thu, 28 May 2026 17:06:28 GMT
ISO 8601: 2026-05-28T17:06:28.271Z
Local: 5/28/2026, 10:36:28 PM
Epoch Conversions
Unix Epoch
January 1, 1970 00:00:00 UTC
Seconds: 1779987988
Milliseconds: 1779987988271
Days: 20601.712827
Windows FILETIME
January 1, 1601 00:00:00 UTC
Seconds: 13424461588
Milliseconds: 13424461588271
Days: 155375.712827
FILETIME: 134244615882710000
Cocoa/Mac
January 1, 2001 00:00:00 UTC
Seconds: 801680788
Milliseconds: 801680788271
Days: 9278.712827
GPS Epoch
January 6, 1980 00:00:00 UTC
Seconds: 1464023188
Milliseconds: 1464023188271
Days: 16944.712827
NTP Epoch
January 1, 1900 00:00:00 UTC
Seconds: 3988976788
Milliseconds: 3988976788271
Days: 46168.712827
Julian Date Epoch
January 1, 4713 BC 12:00:00 UTC (Julian)
Seconds: 212646747988
Milliseconds: 212646747988271
Days: 2461189.212827
About Epochs
Different systems use different reference points (epochs) for counting time. Unix uses January 1, 1970, while Windows uses January 1, 1601. GPS time started on January 6, 1980, and NTP uses January 1, 1900 as its epoch.
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
Formula Source: Standard Mathematical References
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