That's another whole issue.
The ignition timing won't change by itself. If you suspect the timing belt has jumped, then you will have to remove the covers and check the timing marks on the pulleys.
Unless you have some legitimate reason to suspect the timing belt, you usually want to start with the basic troublshooting for a no start condition and if it passes all those tests, then you would begine to suspect the belt.
Here is the prodedures for isolating the problem.
Every engine requires spark, fuel and compression to run. That's what we have to look for.
You need to first test a few functions during the failure.
1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.
2) Test for injecter pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injecter with the key on.
3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
Here's what the noid light looks like.