Description=btrfsmaint
[Timer]
-OnCalendar=Thu *-*-* 02:00:00
+# we could programatically get this via:
+# timedatectl show --property=Timezone | sed 's/^[^=]*=//'
+# or
+# readlink /etc/localtime | sed -r 's,^.*/([^/]+/[^/]+)$,\1,'
+OnCalendar=Thu *-*-* 02:00:00 America/New_York
[Install]
WantedBy=timers.target