Do you want to know excatly what time it is, even better than the clock in your phone. This App requests the time from one of the Primary timeservers on the internet, controlled by Atomic clocks.
The precision depends only on the delay on the network, but is much better than the round trip delay to the time server.
This app shows the precise Internet Time, the Phones system time, and the Local clock offset (the difference between the correct time, and the Phones system time).
Beside that, it shows information about if, and how your phone is connected to the internet.