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Facebook sets an event's time zone from the event's location, so the way to change it is to edit the event and update the Location (or the time zone field where one is shown). Once the location matches the region you want, Facebook stores the event in that zone and then displays the event time in each viewer's own local time zone. That means you set the time once for the host location, and every attendee automatically sees the correct local time.
Below we walk through exactly how Facebook decides an event's time zone, the desktop and mobile steps to change it, why a separate time zone field often does not appear, and how to troubleshoot the most common mistakes that confuse global attendees.
The single most important thing to understand is that Facebook events are location-driven, not zone-driven. When you add a physical address or place to an event, Facebook looks up the time zone for that location and treats the start and end times you typed as being in that zone. There is rarely a free-standing "pick any time zone" control, because the location already answers that question.
This design has a big upside: you only ever set the time once. If your event starts at 7:00 PM in Berlin, you enter 7:00 PM and set the location to Berlin. Facebook then stores that moment and converts it into the local time of everyone who views the event, whether they are in Berlin, New York, or Tokyo. You never have to do the math for your attendees.
This is the reliable, supported way to control the time zone on desktop, whether you are creating a new event or editing an existing one. The goal is to make the Location point to a place in the time zone you want.
On some public events created from a desktop browser, Facebook does surface a dedicated Time Zone dropdown right inside the Date and time block. If you see it, the fastest route is to open that dropdown and pick your zone directly, then confirm the start time still reads correctly before saving. When the dropdown is absent, fall back to the Location method above — both end up setting the same stored zone.
After saving, the event reflects the new zone for everyone. If your attendees span several regions, you can share related guidance such as changing the time zone on iPhone or changing the time zone on Mac so their device clocks are accurate and the converted event time shows correctly.
The mobile app follows the same location-driven logic, just with a touch-friendly layout. The steps below apply to both iOS and Android, though exact labels can shift slightly between app versions.
Because the app reads your phone's clock for display, it is also worth confirming your device time zone is set to automatic so the converted event time you see while editing is accurate.
Many people search for a "time zone dropdown" and never find one. That is expected. Facebook intentionally ties the zone to the Location to reduce errors — a hidden mismatch between a chosen zone and a chosen city is a classic source of wrong event times. By deriving the zone from the place, Facebook keeps the two in sync.
A standalone Time Zone field tends to appear only in specific cases, and even then it usually mirrors the location:
If you do not see a dedicated field, do not assume the zone is wrong. Set the Location accurately and the zone follows.
Once your event is saved, Facebook handles all conversion for you. Every attendee sees the start time translated into their own local time zone, based on their device or account settings. Here is what a single 8:00 PM event in New York looks like to viewers around the world:
You set 8:00 PM once; Facebook does the rest. This is exactly why getting the host location right matters more than hunting for a zone dropdown.
Your Facebook account's language and region settings control how times are displayed to you, not the stored zone of events you host. Still, they are worth checking if the times on your own screen look off:
If your device clock is wrong, every converted time will look wrong too — even though the event itself is stored correctly. Fixing the device zone, as covered in our guide on how to change the time zone on iPhone, usually resolves it.
Changing the time zone on a Facebook event comes down to one idea: the Location drives the zone. Edit the event, set the Location to a place in the region you want, confirm the start time reads correctly for that host location, and save. Facebook then converts the time into every attendee's local zone automatically, so a single accurate setting keeps a global audience on the same page. When the times still look off, the fix is almost always the device clock, not the event itself.
Facebook usually derives the time zone from the event's physical location instead of showing a standalone dropdown. When you set or change the Location to a place in your target region, Facebook picks the matching time zone automatically and stores the event's start and end in that zone.
Open the event, click Edit, and update the Location to a place in the time zone you want. Facebook re-reads the zone from that location and saves the event accordingly. Where a Time Zone dropdown is shown, select your zone there before saving the changes.
Facebook automatically converts the event's time into each viewer's local time zone, based on their device or account settings. An 8 PM event in New York is shown as 1 AM the next day to a viewer in London, so you only set the time once for the host location.
For an online event there is no physical address, so set the Location to a city in your intended time zone, or use the time zone field if Facebook shows one. Confirm the start time matches your local clock, since Facebook then converts it for every other attendee automatically.
Your account language and region settings affect how times are displayed to you, not the stored time zone of an event you host. The event's zone comes from its location. Changing your region only changes how Facebook converts and shows times on your own screen.
A standalone Time Zone dropdown appears mainly on some public, desktop-created events. If it is missing, your event is simply using the Location to derive the zone, which is Facebook's default. Set the Location accurately and the correct zone is applied automatically, even without a visible dropdown.
Usually not. Once an event begins or ends, Facebook tends to lock its date, time, and zone to protect attendees who already responded. Make any time-zone edits before the start time. If you must reschedule, create a new event with the correct location instead.
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