how bright is the clock? -- is this a radium dial clock or a led clock? -- My Gra-Lab timer has Very bright radium (glow in the dark) numbers and dials but is MADE for the darkroom. I also have multiple led numbers on my enlarger timer---looking around there are a lot of things that glow or light up in the darkroom but all were expressly made for the function.
* Just because your eyes are closed, doesn't mean the lights in the darkroom are off. *
* When the film you put in the camera is worth more than the camera you put the film in... *
* When I started using 8x10, it amazed me how many shots were close to the car. *
Your enlarger is probably leaking 3 times as much light as the clock. I wouldn't worry about it.
You probably don't want to have your enlarger turned on when you have undeveloped film out in your darkroom .
I have friends that have towels attached to the top of their Gralab timers that they flip down in front of the timers when photo-sensitive materials are out.
Personally, I think that is most likely unnecessary. I would just position the timers so they are facing away from the materials.
As far as LEDs on equipment, I would suggest turning off or screening what you can, and testing with respect to the rest.
“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2
The human eye is far more sensitive to light than any conventional film. What appears to be bright to us is not seen by the film. When in doubt do a test.
On an APUG trip to Cornwall (about 4 years ago) I stayed in a B&B and changed sheet films (LF) in a bedroom with poor curtains and sodium street lighting. At first I thought it was dark but as my eyes adjusted i could see what I was doing !!! No problems which was rather surprising.