# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/timesync/timesyncd-manager.c#L611
^([[:alpha:]]{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-timesyncd\[[[:digit:]]+\]: Contacted time server (\[)?[.:[:xdigit:]]+(\])?:123 \(.+\)\.$

# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/timesync/timesyncd-manager.c#L618-624
^([[:alpha:]]{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-timesyncd\[[[:digit:]]+\]: Initial clock synchronization to [[:alpha:]]{3} [ .:[:digit:]-]{26} .+$

# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/timesync/timesyncd-manager.c#L1063
^([[:alpha:]]{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-timesyncd\[[[:digit:]]+\]: Network configuration changed, trying to establish connection\.$

^([[:alpha:]]{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-timesyncd\[[[:digit:]]+\]: interval/delta/delay/jitter/drift [[:digit:]]+s/[+-]([[:digit:]]+\.[[:digit:]]{3}s/){3}[+-][[:digit:]]+ppm$
