Translation:I take care of the children at 11:30 am.
I've read that the day was more-or-less divided into four-hour blocks: 6 a.m. - 10 a.m. kakahiaka, when it is cool enough to work outside. 10 a.m. - 2 p.m. awakea, when it's too hot to work outside except in the shade or indoors. 2 p.m. - 6 p.m. 'auinalā, when the sun is lower and work outside can resume. 6 p.m. -10 p.m. ahiahi, evening followed by aumoe after 10 p.m. But these are approximate times and DL sometimes extends a block by an hour or so.
https://writingexplained.org/am-or-a-m-pm-or-p-m-do-i-capitalize-am-and-pm AM/PM and a.m. / p.m. are both correct (am and pm are not)