Next time, grab a spare pushrod and insert it into the spark plug hole while someone turns the engine back and forth at TDC with a breaking bar and a socket on the crank bolt. Even by feel you should be able to get quite close but a dial gauge on a magnetic stand will allow you get very close and also you can do this by yourself.
Even though your chain is new you'll likely feel the slop as you go back and forth locating TDC. If you have trouble feeling it, take the cap off your distributor and watch the rotor. More than about 5 degrees movement at the crank without the rotor moving means the timing chain is pretty loose even if it is new. I've seen this and replaced new ones before.

This shouldn't take more than half an hour and is well worth doing.