The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →To read a world-time watch, first identify which indication shows the selected destination’s time: it may be a second set of hands, a digital display, or a city or offset marker. To set it for travel, select the destination city or supported UTC offset using the controls specified in your exact watch manual, then check its daylight-saving setting and confirm the displayed time and date.
There is no universal crown position or button sequence. City names on a dial usually represent time zones, not every locality’s current rules, so a correct city selection may still need a seasonal adjustment.
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How to read the time on a world-time watch
Start by distinguishing the watch’s home-time indication from its world-time indication. Depending on the design, the selected zone may be shown by extra analog hands, a digital readout, a city ring, or a marker. Do not assume that the main hands have changed when you select a destination.
Look for a city name, city code, or UTC offset associated with the second zone. A city label is a representative zone; it does not guarantee that the watch’s displayed time matches every nearby destination, especially where daylight-saving rules differ.
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- WORLD TIME FOR GLOBAL TRAVEL Track time across 31 time zones and 48 cities with Casio's advanced World Time function. The built-in world map display and Multi Time feature allow you to monitor multiple locations at a glance, making this watch an excellent companion for international travel and business.
- 10-YEAR BATTERY LIFE Powered by a long-lasting CR2025 battery, the AE-1200WH-1AV delivers approximately 10 years of dependable performance, reducing maintenance while providing years of reliable everyday use.
- BUILT FOR EVERYDAY ADVENTURE With 100-meter water resistance, a durable resin case, and a comfortable black resin band, this watch is ready for swimming, hiking, travel, work, and everyday wear. Lightweight construction ensures lasting comfort throughout the day.
- ADVANCED DIGITAL FUNCTIONS Includes a 1/100-second stopwatch, 24-hour countdown timer, five daily or one-time alarms, hourly time signal, full auto calendar through 2099, mute function, and selectable 12/24-hour time display.
- EASY-TO-READ DIGITAL DISPLAY The large LCD display features a dedicated world map window, analog-style sub-display, and amber LED illumination with afterglow, providing excellent visibility in both daylight and low-light conditions.
Example: CASIO Module 5765
On CASIO Module 5765, the second hand points to the selected World Time City, while the world-time hour and minute hands show that zone’s current time. CASIO’s Operation Guide for Module No. 5765 describes those hands as indicating “the current time in the selected time zone.” That instruction applies to this module; another watch may use a different display.
How to set a world-time watch for a trip
- Identify the exact watch or movement. Check the case back and the documentation for its model or module number. Find that exact manufacturer manual before operating the crown or buttons.
- Find the world-time indication. Establish which hands, screen, city ring, or marker shows the second zone and how the watch distinguishes it from home time.
- Select the destination zone. Use the manual’s world-time or zone-selection mode. Choose the destination city if the watch offers it; otherwise choose the corresponding supported UTC offset. A manufacturer’s city table may be representative rather than exhaustive.
- Check daylight-saving time. Follow the model’s instructions for automatic, standard-time, or daylight-time settings. If DST is manual, select the applicable setting and update it when the destination’s seasonal rule changes.
- Verify the result and exit setting mode. Compare the displayed destination time and date with a reliable current reference for that destination. Pay particular attention to locations with fractional-hour offsets or different DST rules. Exit the setting mode as the manual directs.
These are decision steps, not a shared button recipe. For example, Module 5765 changes the selected city with its crown and offers AT (AUTO), STD, and DST summer-time choices. Citizen U822 uses right-side buttons to select and confirm a region and its DST or standard-time choice; it can also transpose the two displayed regional times. Follow the manual for your specific model rather than transferring either sequence to another watch.
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- ICONIC WORLD TIME DIGITAL WATCH WITH RETRO DESIGN Experience Casio's legendary AE-1200 series featuring a distinctive multi-display digital face, world map display, and stainless steel bracelet. Designed for everyday wear, travel, work, and adventure.
- BUILT FOR GLOBAL TRAVEL & EVERYDAY ADVENTURES Track multiple time zones with World Time functionality covering 31 time zones and 48 cities. Easily switch between your home city and world time city while traveling internationally.
- LONG-LASTING 10-YEAR BATTERY LIFE Enjoy years of dependable performance with an approximate 10-year battery life, reducing the need for frequent battery replacements.
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How daylight saving and UTC affect the setting
UTC is the reference used to express the difference between a time zone and Coordinated Universal Time. A watch may identify a zone by its UTC offset, a representative city, or both, but the offset alone does not establish whether a destination is currently observing daylight time.
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Models handle seasonal changes differently. CASIO Module 5765 provides AT (AUTO), STD, and DST choices; its instructions also note that a manually specified zone without a city name may require an explicit STD or DST selection. Seiko’s 8B63 table says to add one hour for DST. Citizen’s F158 documentation states that DST information is not included in satellite signals, so users must adjust it manually before and after the DST period.
Rank #3
- A light-emitting diode (LED) is used to illuminate the watch face
- Local times can be called up quickly and easily for four different time zones
- Displays the current time in major cities and specific areas around the world
- Official Merchandise
Synchronization is not a substitute for checking the setting: a radio- or satellite-synchronized watch may not have current DST rules for every location. Confirm whether your model supports automatic seasonal adjustment for the selected zone, and verify the destination’s current local time before relying on it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What differs between world-time watches
Manufacturer instructions show why the model number matters. These examples illustrate different approaches; they are not a controlled comparison of accuracy or ease of use.
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- 40mm silver-tone case
- 8 inch black two- piece
- Digital dial
- Acrylic lens
- Water resistant up to 100 meters
| Model and source | How time or zones are displayed | Zone selection and coverage | DST behavior |
|---|---|---|---|
| CASIO Module 5765, official guide | Second hand indicates the selected city; world-time hour and minute hands show its time. | Crown selects the city; the cited instructions do not give a zone-count figure. | AT (AUTO), STD, and DST options; a manually specified zone without a city name may require an explicit STD or DST choice. |
| Citizen U822, official instructions | Can display two regions simultaneously and transpose the displayed times. | Right-side buttons select and confirm a region; the cited instructions do not state a zone-count figure. | Provides a DST or standard-time choice for the selected region. |
| Seiko 8B63, official table | A seconds-hand position indicates a selected time-zone entry. | Table links city labels to UTC differences; it is marked “As of August 2020.” | Its table instructs users to add one hour for DST. |
| Citizen F158, official support page | World time is organized around UTC-offset zones. | Supports 38 UTC-offset zones, according to Citizen Watch Global; the support page does not state a publication year. | DST information is not contained in satellite signals; the user must adjust it manually. |
The Seiko table’s August 2020 date matters: treat it as the model’s published reference table, not as a current universal time-zone database. Likewise, Citizen’s 38-zone figure describes the F158, not all world-time watches.
Quick Recap
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- This world time full automatic mechanical watch, designed by Swiss chief designer Etienne Ruffieux with the Earth as his inspiration, featuring a three-dimensional relief technique, the dial masterfully recreates the undulating topography of land and sea. This timepiece has been honored with the prestigious German Design Award in Berlin for its exceptional original design. Let's sail the seven seas with our World Time collection.
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- As the Earth rotates ceaselessly, day turns to night and time zones shift around the globe. The World Time collection displays time differences across 24 global time zones via the time difference ring and city bezel. This technology has been granted a utility model patent. Travel the globe, roam the seven seas—all within the palm of your wrist.
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Before relying on the reading at your destination
- Confirm the selected city or UTC offset matches the destination’s current zone.
- Check whether the destination is observing daylight time and whether your model adjusts for it automatically or requires a manual setting.
- Compare the watch’s displayed time and date with a reliable, current reference for the destination, particularly for fractional-hour offsets.
- If your watch cannot select the destination or handle its seasonal rule, use another time source or a watch with a second-time-zone function that supports your travel needs.
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