I think I would be asking why I have no dash lights?
Are you sure it's blown bulbs or no supply to the clocks per se?
it could be a blown bulb or the dimmer fingers crossed its a blown bulb
Yes, I had to mention this in the MK2 section... My dash lights wet out, turned out to be a poor connection on the dimmer, changed the switch and all was well.
Give the dimmer a bit of a fiddle, you may find they come back on. They tend to become weak at full brightness and the connection fails, if you turn it down a little it may work again, if they do, change the switch.