Circular-T nr.357

Following the publication of Circular-T nr. 357 we shall take a look at the RMS error of UTC-UTC(k) in different laboratories across the world. Should we rank the 75 laboratories that have complete UTC-UTC(k) records by RMS error for this month we find the following.

Warning: Past performance is not an indicator of future results.

It's much easier to be lucky than brilliant, so maybe we have to look one further month back and do the same thing for Circular T 356:

For completeness, here is the whole list for Circular-T nr. 357:

Clock display with Python and Tkinter

On github: https://github.com/aewallin/digiclock

clock_display_2015-04-24

A simple clock display with local time, UTC, date (iso8601 format of course!), MJD, day-of-year, and week number. Useful as a permanent info-display in the lab - just make sure your machines are synced with NTP.

This uses two small additions to jdutil: