Scheduling across timezones: avoid daylight saving surprises
Use an unambiguous UTC moment and an IANA timezone when coordinating a global publishing calendar.
Store a moment, display a local time
“9 AM” is incomplete without a date and timezone. Use a precise UTC timestamp for a shared event and display it with an IANA timezone such as America/New_York. A fixed offset like UTC-5 does not express the seasonal rules of that location.
A worked example
15:00 UTC is 10:00 in New York during standard time and 11:00 during daylight saving time. The date determines the applicable rule. A one-hour assumption can therefore shift a scheduled campaign. Always verify the specific date in your audience’s location.
A timezone converter is not a best-time predictor
Audience activity depends on account history, content, geography and the metric you optimize. Convert the time correctly first, then test comparable posting windows using your own results.
Use the free posting time converter before preparing a publishing schedule.