I'm reasonably sure the time is ok (on the client at least).
I actually have been removing the cache and restarting. My ID was not in the cache.
systemctl stop sssd ; rm -rf /var/log/sssd/* /var/lib/sss/{db,mc}/* ; systemctl start
sssd
# chronyd -q
2021-11-15T09:17:21Z chronyd version 3.5 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP
+SCFILTER +SIGND +ASYNCDNS +SECHASH +IPV6 +DEBUG)
2021-11-15T09:17:21Z Frequency -27.959 +/- 0.168 ppm read from
/var/lib/chrony/chrony.drift
2021-11-15T09:17:25Z System clock wrong by 0.000003 seconds (step)
2021-11-15T09:17:25Z chronyd exiting