hh3cNTPSysLeap 1.3.6.1.4.1.25506.8.22.1.1.1

Leap Indicator (LI): This is a two-bit code warning of an impending leap second to be inserted/deleted in the last minute of the current day, with bit 0 and bit 1, respectively, coded as follows: 00, no warning 01, last minute has 61 seconds 10, last minute has 59 seconds) 11, alarm condition (clock not synchronized).