If you'd be interested in historical synchrotron schedules, they can
be approximately guessed from pdb data, from data collection dates.
Unfortunately, in many entries the dates are random, so there is
significant noise there. Here is how it looks:
https://project-gemmi.github.io/pdb-stats/calendar
Dear CCP4-ers :)
I used to have a handy chart where major synchrotron schedules were all
drawn out as lines (across an entire year) with shutdowns and other
blackout dates marked such that it was pretty easy to find what
synchrotron is open for business at what week/month. This schedule took me
a