Depends - average would probably be about 2-3 hours? Not great but not awful for my use.

I could replace the battery and improve this - ifixit sell the kits - but currently I have no need.

My mid 2013 MacBook air sees more use than any of my other devices.

I bought it for £100 a few years back and haven’t looked back.

33 here - if the staying up is enjoyable then 1-3am is fine. Hangovers are worse than when I was 23, but I’m usually back up to speed by lunchtime.

Of course this is heavily influenced by how much water I drink while I’m out. Hydration is important folks!

I’d argue the whole county, but Norwich is certainly the eye of the storm on that front…