Thank you, Baker !
en.wikipedia.org/wiki/Frequency#Definitions
Atill an apprentice in advanced clockfagging, so it's prolly not what you mean, but I'll give it a shot:
"here" is from 03/23 → 07/04
04/19 is [:13], which goes with [:17][:43] & [:47]
past would be [:14] shared with [:16][:44] & [:46]
(future would be [:11]) – but the post says [past])
Corresponding post (there) could be 23-Dec (pic) – minutes are [:44], just as 23-Dec would be [:16]