I want Grok to draft a weekly meeting schedule for colleagues in London, New York, and Bengaluru. The meeting must stay at 9 a.m. New York time, rather than at a fixed UTC time, for the next six months.

A single time conversion isn't enough here. The US and UK change their clocks on different dates, while Bengaluru doesn't observe daylight saving time. I need the schedule to show the weeks when someone's local meeting time changes.

What should I include in the prompt so Grok treats this as a recurring event tied to a city's time zone, not a repeated UTC offset?

Would supplying IANA time zone identifiers and the exact date range be enough context? I'm also interested in how people verify recurring meeting time zones against a calendar before sharing the schedule. I'm only asking Grok to draft the table, not assuming it can create or validate calendar events.