Here are the davening times for Shavuos:
Erev Shavuos, Thursday, May 28
Make an eruv tavshilin while cooking (p. 654 in ArtScroll siddur)
Candle lighting: 8:21 pm
Minchah: 8:20 pm
Ma'ariv: 9:25 pm
First day of Shavuos, Friday, May 29
Shacharis 9:00 am
Candle lighting 8:22 pm
Minchah, kabbolas shabbos: 8:25 pm
Second day of Shavuos, Saturday, May 30
Shacharis: 9:00 am
Yizkor: 10:45 am
Minchah, shalosh seudos: 8:10 pm
Ma'ariv, yom tov ends: 9:25 pm
