Gps Timestamp Converter
Convert GPS timestamps into standard UTC time using GPS seconds or GPS week values. Quickly handle GPS time conversions with an easy online tool and clear results.
Conversion Mode
GPS Time
Select a conversion mode and enter your GPS or UTC value.
What Is a GPS Timestamp Converter?
A GPS timestamp converter converts GPS time values into a readable date and UTC time. GPS systems commonly represent time using GPS seconds and GPS weeks, which differ from standard UTC time because GPS time does not include leap seconds.
How Can We Convert GPS Timestamp?
To convert GPS time to UTC, you need the GPS week and seconds-of-week, or a complete GPS timestamp. The basic process is:
Enter the GPS week or GPS seconds into the converter.
Calculate the GPS date and time from the GPS epoch, which began on January 6, 1980.
Account for leap seconds between GPS time and UTC.
Convert the resulting value to UTC and display the date and time.
Convert GPS Time to UTC Formula
For GPS seconds, the basic relationship is:
UTC = GPS Time − Leap Seconds
For GPS week and seconds-of-week:
GPS Time = (GPS Week × 604,800) + Seconds of Week
The resulting GPS time can then be adjusted for the applicable leap seconds to obtain UTC.
GPS Seconds to UTC
GPS seconds to UTC conversion requires the GPS epoch and the number of leap seconds applicable to the timestamp. Enter the GPS seconds into the converter to calculate the corresponding UTC date and time.
GPS Week to UTC
GPS week to UTC conversion uses the GPS week number and seconds elapsed within that week. Since each GPS week contains 604,800 seconds, the converter can calculate the corresponding GPS date before applying the GPS-to-UTC offset.