You’re outdoors, the sun’s setting, and you need to check the time, only to realize your Timex Expedition watch is off by an hour. Whether you’ve traveled across time zones or just replaced the battery, knowing how to change the time on a Timex Expedition watch is essential for accuracy and reliability. These rugged digital watches are built for adventure, but their button-based interface can be confusing at first.
Unlike smartwatches that sync automatically, Timex Expedition digital models require manual time setting. But once you know the correct button sequence, it’s quick and intuitive. In this guide, you’ll learn the exact steps to adjust the time, date, format, and alarms on your Timex Expedition digital watch.
Enter Time Setting Mode on Your Watch
Before adjusting anything, you must enter the setup menu. This is the gateway to all time and date changes on your Timex Expedition.
Press and Hold the Set Button
Follow these steps to access the setting mode:
- Press Mode repeatedly until the main time display appears (Timekeeping Mode).
- Press and hold the top-left Set button for 2 to 3 seconds.
- The word “SET” will appear at the top of the screen.
- A field, usually seconds or hours, will begin to blink indicating it’s ready to edit.
Pro Tip: If nothing happens, make sure you’re in the correct mode. The watch won’t accept changes unless “SET” is visible on the display.
Critical Warning: Any changes made outside of SET mode will not save. You must complete the full sequence to preserve your adjustments.
Select T1 or T2 Time Zone
Most Timex Expedition digital watches support two independent time zones called T1 and T2. This feature is particularly useful when traveling or tracking home and local time simultaneously.
Choose Which Zone to Adjust
While in SET mode, use these controls to select your time zone:
• Use the top-right button (+) or bottom-right button (–) to highlight T1 or T2.
• The selected zone will be shown with a T1 or T2 indicator on-screen.
• All adjustments apply only to the selected zone.
Default Settings:
• T1 uses 24-hour format with DD/MM date
• T2 uses 12-hour format with MM/DD date
You can customize both zones independently.
Switch Displayed Zone During Normal Use
• Tap top-right (Mode) briefly to toggle between T1 and T2.
• Hold top-right for 4 seconds to make the selected zone the default display.
Use Case: Keep T1 on your home time and T2 on local time when traveling across time zones.
Set the Hour and Minute
Now that you’re in SET mode and have selected your time zone, it’s time to adjust the actual time values.
Cycle Through Fields with Mode Button
After selecting T1 or T2:
- Press Mode to move through editable fields in this sequence: Hour, Minute, Second, Month, Date, Year, Time Format, Date Format, Chime, Beep.
- Each field will blink when active and ready for editing.
Adjust Time Values
While a field is blinking:
• Top-right button (+) increases the value.
• Bottom-right button (–) decreases the value.
For Hour Setting:
• In 12-hour mode, AM/PM updates automatically when crossing 12:00.
• In 24-hour mode, values range from 00 to 23 with no AM/PM indicator.
For Minute Setting:
• Values roll over from 59 to 00 automatically.
• Press Mode after setting to advance to the next field.
Important: There is no separate AM/PM button. You must change the hour past 12 to toggle between AM and PM.
Skip or Reset the Seconds Field
The seconds field appears during setup, but most users should skip it rather than adjust it manually.
Why You Should Skip Seconds
• Seconds affect both T1 and T2 simultaneously since the counter is shared.
• Best practice is to press Mode without adjusting to skip this field.
• When you exit SET mode, seconds automatically reset to 00.
For Precision Timing: If you need to sync to an atomic clock reference, set seconds last using your phone as the reference source.
Update Date and Year
Date settings are part of the same sequential setup as time adjustment. Follow this step-by-step approach for accuracy.
Date Entry Procedure
- After minutes, press Mode to reach Month (flashes).
- Use + or – to select the month (1 = January, 12 = December).
- Press Mode to reach Date (day of month flashes).
- Enter the day using + or – (values range from 1 to 31).
- Press Mode to reach Year (flashes).
- Adjust the year using + or – (for example, 24 for 2024).
Warning: The watch allows invalid dates like February 30. You must correct these manually since there is no automatic validation.
Leap Year Note: There is no automatic leap year adjustment. You must manually update February 29 yourself when needed.
Choose 12H or 24H Time Format
You can switch between 12-hour and 24-hour time format for each zone independently.
Toggle Time Format
- After year, press Mode until “12H/24H” appears on the display.
- Use + or – to switch between formats.
- T1 defaults to 24H while T2 defaults to 12H, but you can change either.
Benefit: Use 24H for military or precision use, 12H for everyday readability.
Note: In 24H mode, the AM/PM indicator disappears entirely.
Set Date Display Format
Customize how the date appears on your screen by choosing between DD/MM and MM/DD formats.
Select Your Preferred Format
- After time format, press Mode until the format symbol appears.
- A dot (•) indicates DD/MM format (Day/Month).
- A dash (–) indicates MM/DD format (Month/Day).
- Use + or – to choose your preferred format.
- Press Mode to confirm and advance.
This setting applies only to the current time zone (T1 or T2) being edited.
Enable or Disable Chime and Beep
Two audio features let you customize feedback from your Timex Expedition watch.
Turn Hourly Chime On or Off
The hourly chime emits a beep every hour on the hour. Important details:
• It is only active for the currently displayed time zone.
• To change this setting, go to the Chime field in SET mode.
• Press + to turn Chime On, or – to turn it Off.
Workaround: Switch to the other time zone (T1 or T2) to effectively silence the chime without turning it off entirely.
Toggle Button Beep
The button beep provides audible feedback with every button press.
• This is a global setting affecting both zones.
• To disable it, go to the Beep field in SET mode.
• Use + or – to toggle On or Off.
Silent Mode Tip: Turn off Beep for stealth use in quiet environments like theaters or meetings.
Activate Indiglo Backlight
See your watch clearly in dark conditions using the Indiglo electroluminescent backlight.
Quick Light Activation
• Press the bottom-left or bottom-right button (INDIGLO/Indic).
• The light lasts for 3 to 4 seconds.
Enable Night Mode for Persistent Backlight
- Press and hold the Indiglo button until a moon icon appears.
- Now any button press triggers the backlight automatically.
- Night Mode automatically disables after 8 hours.
- To deactivate, hold the Indiglo button again until the moon icon disappears.
Best Use Cases: Camping, night hikes, or frequent time checks in low light conditions.
Save and Exit Setup Mode
This is the most critical step. Your changes will be lost if you don’t save properly.
Finalize Your Settings
- After adjusting all fields, press Mode until you return to the T1/T2 selection screen.
- Press Set (top-left button) to save and exit SET mode.
Critical: Never skip pressing Set to save. Unsaved changes are lost immediately when you exit.
Double-Check: After exiting, verify that the time, date, and format are all correct on your display.
Troubleshoot Common Timex Expedition Issues
Even with the correct steps, problems can occur. Here’s how to fix the most common issues.
Time Won’t Change
• Cause: Not in SET mode.
• Fix: Hold Set until “SET” appears and digits blink on the screen.
AM/PM Is Wrong
• Cause: Hour value doesn’t match the desired AM/PM setting.
• Fix: Adjust the hour across the 12:00 boundary (for example, change 11 to 12 to switch from AM to PM).
Date Shows Invalid Values Like February 30
• Cause: No automatic validation for short months.
• Fix: Manually correct the date by re-entering SET mode and adjusting the date field.
T2 Time Isn’t Updating
• Cause: You edited T1 instead of T2 by mistake.
• Fix: Re-enter SET mode and confirm T2 is selected before making adjustments.
Buttons Not Responding
Possible causes and solutions include:
• Low battery: Replace with a CR2016 coin cell.
• Dirt in buttons: Clean with a dry cotton swab.
• Software freeze: Remove the watch from your wrist and reset by briefly pressing all buttons.
Avoid This Time Window: Do not set the time between 8 PM and 3 AM, as some models may glitch during the internal date roll-over period.
Best Practices for Watch Accuracy
Keep your Timex Expedition running precisely by following these guidelines.
Sync Every 2 to 3 Months
• Quartz movement accuracy is approximately ±15 seconds per month.
• Total drift can reach up to 45 seconds every three months.
• Use your smartphone or time.gov as a reference for synchronization.
Use a Stable Surface During Setup
• Remove the watch from your wrist during setup.
• This prevents accidental button presses and reduces strain on internal components.
Practice Before Travel
• Learn the button sequence at home in a comfortable environment.
• Avoid confusion when adjusting in the field or while traveling.
Digital Models Have No Crown
• There is no crown on digital Timex Expedition models.
• Attempting to pull or twist anything may damage the case permanently.
Myth Busting: All changes on digital models are button-based. Do not attempt to find a crown that doesn’t exist.
Model Compatibility Warning
Not all Timex Expedition watches use the same time-setting method.
Applies To
• Digital models with four-button layout (like TWW4B285009J).
• Watches featuring T1/T2 dual time zones, chronograph, and Indiglo backlight.
Does Not Apply To
• Analog or analog-digital hybrid models (these use crown pull method).
• Smartwatches or Connected by Cellular models requiring app setup.
• Bluetooth-enabled versions that sync with mobile devices.
Warning: Some online guides describe crown-based methods. Those instructions are for analog Expedition models only and will not work on digital versions.
Frequently Asked Questions About Timex Expedition Watches
Can I set the time with a Timex app?
No. Standard Timex Expedition digital watches do not have Bluetooth or app connectivity. All settings must be adjusted manually using the physical buttons on the watch.
Why does changing seconds affect both T1 and T2?
The second counter is shared between both time zones to keep them synchronized. When you adjust seconds, it applies to both zones simultaneously.
How long does the battery last?
• Uses CR2016 coin cell battery.
• Lasts 1 to 3 years depending on backlight use.
• The case uses triangle security screws, so professional replacement is recommended.
Can I disable chime for one zone only?
Not directly. However, since the chime only works for the displayed zone, switching to the other time zone effectively silences it without turning the feature off entirely.
Should I set the time every time I replace the battery?
Yes. The watch resets completely when power is lost. Always re-enter the time, date, and preferred settings after battery replacement.
Key Takeaways for Setting Your Timex Expedition Watch
Mastering how to change the time on a Timex Expedition watch ensures you get the most from your rugged outdoor timepiece. The process involves holding the Set button to enter setup mode, selecting your desired time zone (T1 or T2), using the Mode button to cycle through each field, and pressing Set to save your changes. Remember that seconds affect both zones, the watch doesn’t auto-correct invalid dates, and you must cross the 12:00 hour boundary to change AM/PM. Keep this guide handy for your next time zone change or daylight saving adjustment, and your Timex Expedition will stay as reliable as your next adventure.
