Set it up in Slack and HipChat, or give it a try below:

/tz
↵  
  • Chicago, US: 11:09 pm CDT, Thu Mar 23rd
  • Chicago is 1 hour behind you
  • Los Angeles, US: 9:09 pm PDT, Thu Mar 23rd
  • Los Angeles is 3 hours behind you
  • Paris, FR: 5:09 am CET, Fri Mar 24th
  • Paris is 5 hours ahead of you
  • Mumbai, IN: 9:39 am IST, Fri Mar 24th
  • Mumbai is 9.5 hours ahead of you
  • Chicago is 2 hours ahead of Los Angeles
  • Chicago is 6 hours behind Paris
  • Chicago is 10.5 hours behind Mumbai

Examples: