No it isn't. The server runs NTP, a highly accurate system for synchronising clocks, and synchronises with two servers in California, one in the UK, and one in Australia. Its clock is currently within 5 milliseconds of every one of those servers (see the offset column):
# ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
2001:470:1:117: 216.218.192.202 2 u 22 64 17 0.552 -1.917 0.071
*2600:3c01::f03c 127.67.113.92 2 u 22 64 17 0.312 -1.698 0.140
130.88.200.4 194.66.31.14 2 u 21 64 17 142.525 4.139 0.255
203.26.24.6 198.60.22.240 2 u 16 64 17 181.174 -3.038 9.326
Maybe your system clock is two minutes behind?