Table of Contents
ANNEX1-Timescales
AUniversaltime(UT)
BInternationalatomictime(TAI)
CCoordinateduniversaltime(UTC)
DDUT1
1Tolerances
2Leap-seconds
3ValueofDUT1
EDTAI
ANNEX2-CodeforthetransmissionofDUT1
ANNEX3-Datingofeventsinthevicinityofaleap-second