How to Change the Time on Your Fitbit

Fitbit devices are designed to sync time automatically — but that doesn't mean the clock always shows what you expect. Whether you've crossed time zones, switched phones, adjusted your daylight saving settings, or just noticed your Fitbit is running an hour off, understanding how time actually works on these devices helps you fix the problem faster.

How Fitbit Handles Time (It's Not What Most People Expect)

Unlike a traditional watch, your Fitbit doesn't have a manual time-setting interface built into the device itself. There are no buttons to press on the tracker to change the time directly. Instead, Fitbit devices pull their time from one of two sources:

  • The Fitbit app on your paired smartphone
  • Your phone's system clock, which the app reads automatically during sync

This means changing the time on a Fitbit is really about making sure your phone's time is correct and that your Fitbit app is syncing properly. The tracker is essentially a display — the phone is the source of truth.

Step 1: Check Your Phone's Time Settings

Since your Fitbit mirrors your phone's clock, start there.

On iPhone (iOS):

  1. Go to Settings → General → Date & Time
  2. Enable Set Automatically if it isn't already
  3. Make sure your Time Zone is set correctly

On Android:

  1. Go to Settings → General Management (or System → Date & Time, depending on manufacturer)
  2. Enable Automatic date and time
  3. Confirm the correct Time Zone is selected

If your phone was showing the wrong time and you've corrected it, your Fitbit should update during its next sync.

Step 2: Sync Your Fitbit

Correcting your phone's clock doesn't instantly update your tracker. You need to trigger a sync.

To sync manually:

  1. Open the Fitbit app
  2. Tap your profile icon (top left)
  3. Select your device
  4. Pull down on the screen to initiate a manual sync — or look for a Sync Now option

⏱️ The sync usually completes within a few seconds when your phone and tracker are close together with Bluetooth enabled.

Step 3: Check the Fitbit App's Time Zone Setting

In some cases — particularly after international travel — the Fitbit app may hold onto a cached time zone rather than updating automatically. Here's how to check:

  1. Open the Fitbit app
  2. Go to your profile icon → App Settings
  3. Look for Time Zone under the General section
  4. If it's set to Automatic, the app will inherit your phone's zone
  5. If it's set manually, update it to match your current location

Setting this to Automatic is generally the most reliable option for everyday use.

Why Your Fitbit Might Still Show the Wrong Time

Even after syncing, a few variables can cause the clock to stay out of sync:

CauseWhat's Happening
Bluetooth is offSync can't complete without an active connection
App is outdatedOlder app versions can have sync bugs
Firmware needs updatingDevice-side issues can affect time display
Time zone set manually in-appApp isn't pulling from phone's system zone
Phone time isn't on automaticPhone itself is showing wrong time

Fitbit firmware updates can occasionally reset certain preferences or introduce temporary sync behavior changes. Keeping both the app and device firmware current reduces the chance of these issues surfacing.

Devices With Clock Faces (Fitbit Sense, Versa Series, Luxe, etc.)

More advanced Fitbit models — including the Sense 2, Versa 4, and Luxe — display the time prominently on customizable clock faces. If your time is syncing correctly but something looks off visually, it may be a clock face display setting rather than an actual time error.

🎨 Some clock faces show 12-hour format, others 24-hour. You can change this:

  1. In the Fitbit app, go to Today tab → Your Profile → Your Device Image
  2. Select Clock Faces
  3. Choose a face, then look for display format options in the face settings

Some third-party clock faces also have their own configuration panels where 12/24-hour format is set independently.

24-Hour vs. 12-Hour Time Format

If you want to switch between AM/PM and military time:

  1. Open the Fitbit app
  2. Navigate to Account → Advanced Settings
  3. Look for Clock Display Time — toggle between 12-hour and 24-hour
  4. Sync your device afterward

This setting lives in the app, not on the device itself — consistent with how Fitbit centralizes most configuration through the companion app.

Where Individual Setup Makes a Difference

The steps above cover the most common scenarios, but how smoothly this process goes varies based on factors specific to your situation. The operating system version on your phone, the Fitbit model you're using, whether you're on iOS or Android, and whether your device is newly paired or has been in use for years all affect where settings live and how reliably automatic sync works.

Older Fitbit models may have slightly different app navigation paths than newer ones. Android phones from different manufacturers sometimes label their date and time settings differently, or handle automatic time zone detection inconsistently. Users who travel frequently between time zones, or who use their Fitbit paired to a work device with managed settings, may find that automatic sync behaves differently than it would on a personal phone.

The mechanics are consistent — Fitbit reads from your phone, your phone reads from the network — but getting everything aligned depends on what's actually running in your specific environment.