Hi
A time might be more like 3hrs now.
This is a great link to keep an eye on:
Average A times- BOOKMARK ME! If you are still at 2hr A I wouldn't increase immediately up to 3hrs but rather go in 15 min increments. You can likely do the first couple quite quickly, day 1 2hr 15, day 2 2hr 30 then hold for at that for another day or so, then move another 15 mins say day 4 or 5. You might see the nap lengthen at this point as LO becomes more tired with the longer A time but after a couple of days nap might go short again as the A isn't quite long enough.
You might find 2hr 45 is enough for now or you might need to go up to 3hr or even 3hr 15...it depends on the Lo as the times are a guide not a strict rule.
If you found previously that a slightly longer second A time was needed (you said 2hr first A with 2hr 30 second A) then you might follow this again with the A time increase.
See how you go over the next few days with the increase - but do post again if you need more support