Hour, Minute, and Second Format Pictures

The format picture for a time string consists of a combination of one string from each of these format types:

Hours  
h Hours without leading zeros for single digit hours (12 hour clock)
hh Hours with leading zeros for single digit hours (12 hour clock)
H Hours without leading zeros for single digit hours (24 hour clock)
HH Hours with leading zeros for single digit hours (24 hour clock)
Minutes  
m Minutes without leading zeros for single digit minutes
mm Minutes with leading zeros for single digit minutes
Seconds  
s Seconds without leading zeros for single digit seconds
ss Seconds with leading zeros for single digit seconds
Time Marker  
t One character time marker string
tt Multi-character time marker string