[Feature]
1) Millisecond Clock supports not only seconds but also milliseconds, allowing you to check the time in more detail.

2) Dark Mode and Light Mode theme
Millisecond Clock supports Dark Mode (Night Mode) and Light Mode (Day Mode). Use the mode you prefer depending on the situation.

3) Full Screen Mode
Millisecond Clock supports full screen mode. Expand your view to a wider screen and check the time more comfortably.