That’s a language problem, in a lot of European languages they already work like that.
In French the way they say 9:20 a.m. is literally “the time of 9 hours 20 minutes” and 3:45 p.m. is “the time of 15 hours 45 minutes”. It’s written as “h1545”. Which is very close to how military time works in English speaking countries.
1h23m45s is 1 decimal hour, 23 decimal minutes, and 45 decimal seconds, or 1.2345 decimal hours, or 123.45 decimal minutes or 12345 decimal seconds; 3 hours is 300 minutes or 30,000 seconds. This property also makes it straightforward to represent a timestamp as a fractional day, so that 2023-10-26.54321 can be interpreted as five decimal hours and 43 decimal minutes and 21 decimal seconds after the start of that day, or a fraction of 0.54321 (54.321%) through that day (which is shortly after traditional 13:00)
But can we first make a day everywhere 24h instead of 2x 12h?
That’s a language problem, in a lot of European languages they already work like that.
In French the way they say 9:20 a.m. is literally “the time of 9 hours 20 minutes” and 3:45 p.m. is “the time of 15 hours 45 minutes”. It’s written as “h1545”. Which is very close to how military time works in English speaking countries.
Let’s jump straight to decimal time then.