h

The hour in the day, using a 12-hour clock. Leading zeros are excluded for single-digit hours.

3
(for 3am or 3pm)

hh

The hour in the day, using a 12-hour clock. Leading zeros are included for single-digit hours.

03
(for 3am or 3pm)

H

The hour in the day, using a 24-hour clock. Leading zeros are excluded for single-digit hours.

3
(for 3am)

15
(for 3pm)

HH

The hour in the day, using a 24-hour clock. Leading zeros are included for single-digit hours.

03
(for 3am)

15
(for 3pm)

m

The minutes past the hour. Leading zeros are excluded for single-digit minutes.

4
(for four minutes past the hour)

mm

The minutes past the hour. Leading zeros are included for single-digit minutes.

04
(for four minutes past the hour)

s

The seconds past the minute. Leading zeros are excluded for single-digit seconds.

9
(for nine seconds)

ss

The seconds past the minute. Leading zeros are included for single-digit seconds.

09
(for nine seconds)

t

A one-character string, A or P, to indicate whether the time is before or after midday.

A
(to indicate that a time is before midday)

tt

A two-character string, AM or PM, to indicate whether the time is before or after midday.

AM
(to indicate that a time is before midday)