how can i determine its am or pm when some are missing it?

G-1
Baisakh-12

SU 9AM-1PM,5-9PM
M 11AM-3PM,8-11PM
TU 10AM-2PM,6-10PM
W 8-11AM,5-8PM
TH 7-10AM,3-6PM
F 6-9AM,2-5PM
SA 6-8AM,1-5PM