When

Put everyone's zone in a row and see the whole day at once. The plan lives entirely in the link — send it and the other side sees the same grid, with their own row already lined up.

Best hours

Notes

• Offsets come from your browser's own time zone database, including daylight saving. Pick a date in the future and the grid uses the rules that will apply then, not the ones in force today.
• Columns are whole hours of the column zone's wall clock. Zones offset by thirty or forty-five minutes therefore show minutes in their cells — Kolkata and the Chatham Islands are not lining up with anyone.
• On the day a zone springs forward, one wall-clock hour does not exist. The grid shows the instant the clock actually jumps to, which is the same thing a calendar invite would do.