1st Atomic Time - Synchronize PC Clock with Atomic Time

Key Features

• 1st Atomic Time keeps your system time accurate.
• It synchronizes your PC clock with Internet atomic time servers.
• You can pick the fastest and most reliable servers.
• This program supports firewalls and proxy servers.
• You can setup this program to automatically adjust the time at specified intervals or once at Windows startup.
• 1st Atomic Time can operate as a time server, then you can ensure you have the exact time on any computer in your network.

Technical Specifications

• **Publisher:** Atom-time.com
• **License:** Shareware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Internet / Online Timers