The leap second is to compensate for deviations from the universal time (UT) which is astronomically determined and the “International Atomic Time (TAI).
“1 second” may be added (deleted) once a year or every few years.
Automatic leap second reception function
A leap second is automatically added by receiving “leap second data” from GPS signals at the time of leap second addition (delete).
“Leap second data” includes information about future leap second addition and current leap second data.
Receiving Leap Second Data
When GPS signal reception (automatic time adjustment, manual time adjustment, or time zone adjustment) is performed on or after June 1st and December 1st, leap second data may be received.
No particular operation is required.
After the completion of time adjustment (automatic time adjustment or manual time adjustment), up to 18 minutes may be required until receipt of leap second data is complete.
When GPS signals are received under the following conditions, the leap second data reception is also started.
GPS signals have not been received for a long time
Leap second data reception has failed
With GPS signal reception, leap second data reception will be performed again. This will continue until leap second data reception is successful. Confirm the result (success or failure) of the leap second data reception.
Check whether leap second data reception was successful
The reception result (success or failure) of the regular leap second data reception is displayed for 5 seconds.