Anyone who works an office job should be able to set their own hours. I choose 6:30-2:30. I can still hit up local shops after. My colleague chooses 10-8 and shops before work. There's no reason we can't make this work.
For a lot of time, i thought the 12 hour clock was not that bad
Until i saw people excluding the AM/PM. What does 6:30-2:30 mean? Are you working -4 hours? Are you working from 18:30 to 2:30 or from 6:30 to 14:30? Why do people choose this time format?
The meaning is clear in this context, but not all of them. Especially when instead of a range of hours it is a single one.
Although it is possible to determine they "probably meant this one", why would you waste your time guessing based on context and risk being wrong when you can just use 24h and be precise.
Even though you're right, context is also important. They're talking about working in an office, so it shouldn't be difficult to understand that they're referring to working 8 hours, from 6:30 AM to 2:30 PM
Until i saw people excluding the AM/PM. What does 6:30-2:30 mean? Are you working -4 hours? Are you working from 18:30 to 2:30 or from 6:30 to 14:30? Why do people choose this time format?
No, this is what is confusing you. It's like you never had any simple education, or you're completely unaware of your surroundings.
How is it possible to be so confused about clocks?
Yeah my company doesn't care when I come and go as long as I work 40 hours and don't miss meetings. 4 day workweeks are generally frowned upon but you can do it now and then.
06:30-02:30 (note the 0!) means 6:30 am to 2:30 am the following day. Anything in pm would be +12 hours. 6:30 pm becomes 18:30; 2:30pm is 14:30. Using this format you want 06:30-14:30 which is 8 hours.
This format is important because it actually solves the problem you are trying to explain (am/pm). Regularly I need to give EST database timestamps for a PST server cluster while living in another timezone myself and speaking to someone in India which is :30min difference in time zones and trying to account for daylight savings. Removing am/pm just makes it easier to track what happens in different places without looking at the wrong time window. Time math is messy and stupid, be specific by using 24 hours instead of 12
Edit: I guess no one works in timestamps, keep on being terrible for the rest of us.
Edit 2: if you don't understand how time works, reconsider your opinion. Spreading misinformation is damaging
I had a job once with core hours. Everyone had to be there 10 am to 2 pm, but you could decide when to come in and leave as long as you were there 8ish hours, and you were there during core hours.
I'm thankful I can do this. My employer measures performance based on what we actually do, not how long we work for.
I'm usually at work 10 AM to 6:30 PM (which helps avoid peak hour traffic), but I can come in and/or leave earlier or later and it'd be fine. I work from home two days a week, too.