Smart World Clock & Time Zones

Create time zone that can be use on mobile app for Android and iPhone that allows users to manually change their device's time zone when there is no cellular network available. Once the device reconnects to a cellular network, the app should automatically disable the manual time zone setting and return the device to the network-provided time zone.

Key features:
• Manual add more time zone selection even when offline from cellular network.
• Automatic detection of cellular network reconnection.
• Automatic restoration of the correct network time zone when connectivity returns.
• Simple, user-friendly interface.
• Support for both Android and iOS devices.
• Ideal for travelers, cruise ship passengers, and users in remote locations where cellular service is unavailable.