D750 BULB mode timer?

I just recieved my 10 stop filter and MC-DC2 remove for my Nikon D750.

Does the D750 have a timer for BULB mode? Or do I have to use my phone or watch to countdown the exposure time after locking down th button on the remote?

Probably a dumb question but I was just hoping the camera would have a timer vs having to watch my phone or watch the whole time.

Thank you!