The 1-prim digital clock is a low-lag (only two textures) fully customizable clock.
It supports 12 and 24 hour mode (in 12 hour mode shows “am”/“pm” after the time). It can be configured to show seconds. It's color is also customizable either through script or via Texture tab in Build dialog.
And above all, used timezone can be set with support to half-hour and lower gradation timezones. Time shown can be affected by the daylight saving or not. All for you to customize.
Because the clock is a single prim it can be easily linked with other primes to create a new object.
Glitch in the Viusuals
It seems to be made from parts linked together and one section has numbers showing, but just a piece of one, on the back of it, and part that is between the two parts to either side of that section shows through on the front, which I find very distracting.
an effective clock
Simple. Easy.The option of not showing seconds in 12 hour mode did not seem to work for me, so I set the clock to 24 hour. Otherwise, this clock does the job effectively for one prim.