Global Time Travel Clock

Visual World Clock

The Global Time Travel Clock shows the time at many locations around the world simultaneously with a single glance. It also lets you easily visualize how times change together in the future or the past around the globe. Just swipe your finger around the circle to move time forwards or backwards. Align a locations time arrow to a future time to see the effect on times in the other locations. Also shows which day it is in the different locations. Great for planning long distance meetings, plane trips, viewing sports events or just knowing if it's Tuesday or Wednesday in Borneo.

*Note: this review was written back when the Global Time Travel Clock was called “Chronulator”.

User's Guide

The Global Time Travel Clock displays the time at many locations around the Global simultaneously on one clock. The display shows the time at each location, the current local time, and the day for each location. Reading the display is easy: the green line indicates the local time. Each location chosen by the user appears in a separate band around the clock face and two light blue lines indicate the midnight line and the International Date Line.

Choose Locations

In the lower right corner, tap the "+" button to add, remove, or reorder the locations show on the globe clock. You can also change the name used to display the location on the globe clock banner. On the Choose Locations screen, tap on the location to go to the Change Location screen, then type whatever you like in the text box. Note that special characters may not display properly.

Time Machine

Global Time Travel Clock also has a time machine feature: touch and drag the clock face backwards or forwards to see the times in the past or the future. Tapping the clock button in this mode will show the future/past times at all locations you have chosen as well as major time zones around the world. When the time has been shifted forward or backward a reset button (small circle with clock hands) appears in the lower left corner to return the clock back to current time mode. During time-shift mode the clock will continue to advance with time.


In the upper left corner, tap the clock icon to see the times in all the locations you chose, along with times in all the major timezones around the globe.


To create a notification that will alert you when it is a given time in one of your chosen locations, first move the globe clock to the time when you want to be notified, then tap on the clock icon in the upper left corner and on the timezones screen tap on the location you want to set the notification for. Note that this will schedule a notification for the *time* selected, even if it is in the past. If you rotate the globe 5 minutes backwards, you will get an alert in about 23 hours and 55 minutes.


The iPhone has a lot of ways to silence potential alerts. You may not get an alert or a sound for a notification, if one of the following conditions is true:

  • The mute switch is on, or the ringer volume is set all the way down.

  • Do not disturb is on (change in Settings app -> Do Not Disturb)

  • The app is not allowed to get notifications (change in Settings app -> Notifications -> Global Clock)

  • You have an Apple Watch and it is set to mirror alerts from iPhone app. Sometimes it will send the alert to the watch, but sometimes it won't, and either way you won't hear any sound on the phone. (Change in Watch app -> Notifications -> scroll down to the "Mirror iPhone Alerts From:" section and find "Global Clock").