Your order and times are pretty messed up, like the UTC clock on Titan 6 is after Thrasher?
Halp please! lol
Timezone BST - UTC+1
(time on legacy-achievement)
1st Boss - 21:08:14 ( 09:08:14pm )
2nd Boss -21:34:41 ( 09:34:41pm )
3rd Boss - 21:48:36 ( 09:48:36pm )
4th Boss - 22:11:34 ( 10:11:34pm )
5th Boss - 22:33:15 ( 10:33:15pm )
6th Boss - 22:49:11 ( 10:49:11pm )
Heidy got it spot on.
I must have taken the screenshots out of order (it was late at night and was tired).