This app displays the most accurate time.
Birthday, New Year’s Eve, always be on time.

Atomic Clock can set the current time for your automatically in the background (requires root).

Tab the clock to hide and show the control buttons.

Features

• Shows accurate time
• Landscape- and portrait-mode
• Option to show or hide milliseconds
• 2h and am/pm-mode
• Choose display refreshrate. A lower value slower drains the battery
• Automatically sets the current time and date. This option is only available for root users.

To receive the most accurate time, best use this app on a stable wifi or 3G connection.

Technical info:
The time is synchronized using the NTP-protocol and therefore requires internet access.
Atomic Clock uses your mobile only as clock generator, the actual accurate time is received from one of the NTP-servers.

That’s it ;-)