DD#1 - 29 months
DD#2 - 3 yrs and 2 months
DD#3 - still has daytime naps.

My DD#3 is the same age as your DD....she defn still needs a day sleep, and will often run to her cot when i say 'sleep time'. She usually sleeps for 2 hrs, always up by 4pm....and in bed again at 7pm (again, runs to her cot when we say bedtime....)
My DD#2 has only just dropped her day sleep...i reckon if i persisted really hard she would still have 1.5 hrs in the day, but with newborn and toddler, and school runs, i gave up when she started to argue with me....she will often sleep in the car on the way home though from school pick up.

I have found this year, we've had to get up at 7am to get DD#1 ready for school....last year i sometimes didnt get outta bed till 830am !!! and noticed at only 12 months, she would struggle with her day sleeps...maybe look at getting up a little earlier..?????

I've got them sleeping at the same time these days! woo!
...a major achievement in any mums book...cant wait for that day with my younger two...well done !!!