How to Change the Time on Your Fitbit
Fitbit devices don't keep their own independent clock the way a traditional watch does. Instead, they sync their time automatically from a connected smartphone or the Fitbit app. That single fact explains almost everything about how time changes work — and why the process looks different depending on your setup.
How Fitbit Timekeeping Actually Works
Your Fitbit pulls its time data from whichever device it's paired with — typically your iPhone or Android phone. When you sync your Fitbit (manually or automatically), it reads the time from your phone and updates accordingly. This means:
- You generally cannot set the time directly on the Fitbit itself
- Changing the time on your Fitbit means changing it at the source — your phone or app settings
- Time zone changes happen the same way: sync after updating your phone's time zone
This is different from a traditional watch or even some GPS-enabled smartwatches that can acquire time independently. Fitbit's model is sync-dependent by design.
The Standard Method: Sync Through the Fitbit App ⏱️
For most users, the correct time will appear automatically after a sync. Here's how to trigger it:
On your phone:
- Open the Fitbit app
- Make sure Bluetooth is enabled on your phone
- Tap the Today tab, then tap your profile picture
- Select your device and tap Sync Now
After syncing, your Fitbit should display the updated time pulled from your phone's system clock.
If your time is still wrong after syncing, the issue is almost always one of two things: your phone's time is incorrect, or your time zone setting needs updating.
Fixing the Phone-Side Time Settings
Since Fitbit borrows its time from your phone, start there.
On Android:
- Go to Settings → General Management → Date and Time
- Enable "Automatic date and time" and "Automatic time zone"
- If you're traveling and need a manual override, you can disable automatic settings and set them manually
On iPhone (iOS):
- Go to Settings → General → Date & Time
- Toggle on "Set Automatically"
- If automatic isn't working, disable it, set the correct time and time zone manually, then re-enable
Once your phone shows the correct time, sync your Fitbit again. The device will pull the corrected time on the next sync.
Time Format: 12-Hour vs. 24-Hour Clock 🕐
This is a separate setting from the actual time, but a common source of confusion. Fitbit devices support both 12-hour (AM/PM) and 24-hour (military) format, and you can change this within the app:
- Open the Fitbit app
- Tap your profile photo → your device → Clock Display Time
- Toggle between 12-hour and 24-hour format
Some older Fitbit models surface this setting differently, or the option may live under Advanced Settings depending on which device you own.
Variables That Affect How This Works for You
Not every Fitbit user has the same experience here. Several factors determine which exact steps apply:
| Variable | How It Affects the Process |
|---|---|
| Fitbit model | Older trackers (Alta, Charge 3) vs. newer smartwatches (Sense 2, Versa 4) may have slightly different app layouts |
| Phone OS version | Android and iOS menus shift with updates; exact navigation paths may differ |
| Sync frequency settings | If auto-sync is off, time won't update until you sync manually |
| Time zone travel | Manual sync required after crossing time zones if automatic sync hasn't fired |
| Fitbit app version | Outdated app versions can cause sync failures; keeping the app current matters |
When Syncing Doesn't Fix It
If your Fitbit is still showing the wrong time after confirming your phone's time is correct and syncing:
- Restart the Fitbit — hold the side button (or follow the restart method for your specific model) and sync again
- Check Bluetooth — sync only works over Bluetooth; toggling it off and on can resolve handshake issues
- Log out and back into the Fitbit app — this forces a fresh connection and re-reads device settings
- Reinstall the Fitbit app — a last resort, but effective if the app's cached data is corrupted
On Fitbit smartwatches with Wi-Fi connectivity (like the Sense or Versa series), the device can sometimes sync over Wi-Fi without your phone nearby — but the time source logic remains the same.
The Role of Daylight Saving Time
Fitbits handle Daylight Saving Time (DST) automatically when your phone's time is set to update automatically. If your phone adjusts for DST on its own, your Fitbit will reflect that change on the next sync — typically without you doing anything.
If your Fitbit didn't update after a DST change, the likely causes are: auto-sync was off, Bluetooth wasn't enabled during the transition window, or your phone's automatic time setting was disabled. A manual sync resolves it immediately in most cases.
What Changes Based on Your Setup
Someone using a newer Fitbit smartwatch paired to a modern iPhone with auto-sync enabled will almost never need to manually touch their time settings — it just works. Someone using an older Fitbit tracker on an Android phone with aggressive battery optimization may find Bluetooth sync gets interrupted, leading to stale time readings. A user who travels frequently across time zones needs to understand the sync dependency, because the device won't update until it actually communicates with a phone showing the new local time.
The steps are simple. What varies is which step in the chain is breaking down for your specific device, phone, and usage pattern — and that's what determines which fix actually applies to you.