The Day's Smoking-Log:

1^st @ 11:30 AM
2^nd @ 12:30 PM
3^rd @ 2:20 PM
4^th @ 4:00 PM
5^th @ 5:15 PM
6^th @ 6:20 PM
7^th @ 7:35 PM
8^th @ 8:45 PM
9^th @ 11:15 PM
10^th @ 1:00 AM Average time-interval 90 minutes!