time of birth (optional) 12 AM = 0 h 1 AM = 1 h 2 AM = 2 h 3 AM = 3 h 4 AM = 4 h 5 AM = 5 h 6 AM = 6 h 7 AM = 7 h 8 AM = 8 h 9 AM = 9 h 10 AM = 10 h 11 AM = 11 h 12 PM = 12 h 1 PM = 13 h 2 PM = 14 h 3 PM = 15 h 4 PM = 16 h 5 PM = 17 h 6 PM = 18 h 7 PM = 19 h 8 PM = 20 h 9 PM = 21 h 10 PM = 22 h 11 PM = 23 h 00 minutes 01 minute 02 minutes 03 minutes 04 minutes 05 minutes 06 minutes 07 minutes 08 minutes 09 minutes 10 minutes 11 minutes 12 minutes 13 minutes 14 minutes 15 minutes 16 minutes 17 minutes 18 minutes 19 minutes 20 minutes 21 minutes 22 minutes 23 minutes 24 minutes 25 minutes 26 minutes 27 minutes 28 minutes 29 minutes 30 minutes 31 minutes 32 minutes 33 minutes 34 minutes 35 minutes 36 minutes 37 minutes 38 minutes 39 minutes 40 minutes 41 minutes 42 minutes 43 minutes 44 minutes 45 minutes 46 minutes 47 minutes 48 minutes 49 minutes 50 minutes 51 minutes 52 minutes 53 minutes 54 minutes 55 minutes 56 minutes 57 minutes 58 minutes 59 minutes