could it be because DateTime did not implement microseconds before 7.1 ?
Discussion
nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq7pkrmelmaue3370ls2hl8skn5lqmz6cc39cqf570ly0s7lkyrmrqm28h6g That might indeed be why the constant was implemented that way 10 years ago... 😁