Alien: Covenant Trailer Release Date Decoded by using Unix timestamp

Now there are four images with four different codes, even l don know what result it should be generated, but l have used 'Unix time stamp system to generate a same result as a date that
has same month and day as below :

First try l ignore 2104 in each code and convert the rest number and its result:
22461207 --1970/1/1 14:14:21
18561208 --1970/1/1 13:9:21
13011206 --1970/1/1 11:36:51
22051205 --1970/1/1 14:7:31

then l try 22462104 --1970/1/1 14:14:22,
then try 21042246 --1970/1/1 13:50:42
then is 22052104 --1970/1/1 14:7:32
then is 21042205 --1970/1/1 13:50:42
then is 21041205 --1970/1/1 13:50:41

l just keep try use different combination to convert result , is also same is 1970/1/1 it just a try but l guess the trailer release
date may be at 01/01/2017.