My ds is 6 and for the past few months has been wanting to know times it's taking for things. For example:
He will ask me how many hours/ minutes it is till bedtime.
Ask me how long he's been led in bed for.
Ask how long it is till morning.
Ask how long we have been out for/ how long till we go home.
Ask how long it's taken him to eat / bath / dress etc.
I started off just guessing but recently he's wanted to know precisely. He's asked if I can time him on a stopwatch so he knows exactly how long it takes to get dressed or walk to school.
I didn't think anything of it until he's started getting upset and annoyed if I can't tell him an answer.
Last night he came in my room at around midnight and asked how long he'd been in bed for. Because I said about 3 hours he got upset saying he needed to know exactly how long. I had to get the calculator up on my phone and work out the minutes from 9:10 to 12:15. He then went back to bed.
Is this just something kids do?