The universal overlap window
If your team spans Asia, Europe and the Americas, look at 14:00–17:00 UTC first. That's 22:00–01:00 in Sydney (late but possible), 14:00–17:00 in London, 09:00–12:00 in New York and 06:00–09:00 in San Francisco. Use the meeting planner to confirm against each attendee's local time and DST.