As leap seconds are introduced over time, GPS time diverges further and further from UTC. GPS time is continuous and is not adjusted to take account of leap seconds. The start epoch was 0 hours (midnight) Sunday, when GPS time was 0.

The time scale is a count of the number of weeks, and seconds of the current week, since an epoch. GPS time is the atomic time scale maintained by GPS satellites and the ground control stations used to synchronize the GPS system. Each satellite is fitted with a highly accurate atomic clock, which is periodically synchronized by a ground control station located at USNO, Colorado. The GPS system consists of a constellation of Earth orbiting satellites. UTC is periodically adjusted to acommodate leap second insertions. It is the same anywhere on Earth, regardless of location. UTC, or Universal Coordinated Time, is not affected by time zones or daylight saving. Local time is calculated from UTC time, but is adjusted for time zone and daylight saving offsets. It is affected by your locations time zone and daylight saving time. Local time is the current time in your locale or region. It therefore diverges from UTC at the introduction of each leap second.

GPS time is a continuous time scale and does not adjust for leap second insertions. It consists of a count of weeks and seconds of the week since 0 hours (midnight) Sunday 6 January 1980. GPS time is a time scale maintained by the atomic clocks of satellites and ground control stations of the Global Positioning System (GPS).

Utc to gps time converter