Checking and adjusting leap second setting
This watch displays the time information by setting the leap second and time
difference (manual adjustment) to the International Atomic Time information
received from the satellite.
• Leap second setting can automatically be adjusted by executing manual reception
2 (page 40) and using leap second information.
• The leap second setting can also be adjusted manually.
• The leap second setting at shipping of this product (as of September 2014) is "‒35
seconds".
You can find a list of leap seconds at the homepage of IERS (INTERNATIONAL
EARTH ROTATION & REFERENCE SYSTEMS SERVICE).
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http://hpiers .obspm .fr/eop-pc/earthor/utc/TAI-UTC_tab .html