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GPS includes the offset between GPS time and UTC so that receivers can convert to UTC if they want to.

This offset is limited to 255 seconds though.

> This offset is limited to 255 seconds though.

Given that leap seconds have been added at a rate of approximately 1 every 1.6 years, we are still good for another 376 years.

Don't forget that they can be negative leap seconds too! It hasn't happened yet but it is expected.