Does any country issue daytime-only commercial licenses? I got my PPL last year (EASA, UK) and I've always been interested in the commercial route. However, due to my red-green colour blindness I've failed the Ishihara, Farnsworth D15 and CAD vision tests which are accepted by the UK CAA to obtain an unrestricted medical. By now I've accepted that going all the way to ATPL might not happen for me, but I'm still interested in any other style of commercial flying that could remain an option.

My question is - can I theoretically get a CPL which would allow me to fly only during the day? Is there any such thing as a Class 1 medical which is restricted to daytime only, like my current Class 2? Can I get an IR with colour deficiency, or just not get one at all?

Of course getting a job is another matter, but I just want to know if I could theoretically fly for a living (or even just a side job) while accepting my colour deficiency as opposed to continually trying to fight it. I'm originally from the UK, but I'm interested in opportunities all around the world - in fact, I'm planning on spending the next few years in Australia, New Zealand and possibly Canada using the temporary visas they offer to UK citizens.
In Australia you can get a class 1 medical whilst being colour-blind, limited to day VFR. Night flying over here is a separate rating and not incorporated into the PPL/CPL so it is optional - it might limit your job prospects but you can absolutely fly on a CPL here in daytime only.