Almost on one nap - need a routine

[My little Liam]

I need help! My dd is almost on one nap. She will be 13 months on the 19th.
She likes a morning A of 4hr15-4.5hr and the rest around 4hr45-5hr. So I’m guessing she still needs a 15-20 min nap in the afternoon but I don’t know how long her A to bed should be after that.
Could someone write out a good routine? And I guess also an option of a short moring nap as well?

[Haribo2012]

Hi at that age we did 30 min nap at 9.30am then long nap 12.30-2.30pm WU was 6.30/6.45 BT 7.15/7.30 these were mostly set until about 16 months. Worked best with School runs for us that way. x

[My little Liam]

So I have been trying the routine and we either get two short naps or things work out but then she can’t settle for BT. I think we are a bit farther along in the 2- and she needs a 20 minute nap max.
Can anyone give me a routine for long morning and short 20 min pm nap,

[Buntybear]

Just looked back and at 12 months we did long morning nap at 11.15 and then a catnap at 4ish.

[My little Liam]

When was wake up and bed time?

[Buntybear]

7am WU and 8pm BT x