SBST:
A shift = start of operation to ard 1500hrs
P shift = ard 1500hrs to end of operation
S shift = Split shift(sumtimes SWING from 0900-1200, sumtimes
1200-1500, it all depends)Normally found on weekday
T shift = Day Shift(ard 0700-1900)Normally found on weekday, so for
e.g., 997 does S Shift on Weekdays and does T shift on
Saturdays
E Shift = Split shift(Extended, like Day shift)Acts like student
bus
N Shift = Night shift(Found on Nite Owl/NR/409)
SMRT:
AM Shift = same as SBST A shift
PM Shift = same as SBST P shift
S Shift = same
TQ = same as SBST T shift