Might have just found the answer to work email anxiety when HQ is in another timezone i.e. "Delayed Messages": http://blog.musubimail.com/post/33715626157/gmail-timer-schedule-when-to-receive-new-mail NOW running only on Mon-Fri at GMT 8am, 2pm and 4pm
Amended code from Musabi link above:
Note: I also use Zapier email parser to respond to meeting invites with some guidelines for meetings (just make sure your Google Mail filter excludes invitations with the words 'accepted' or 'updated' too).
