whilst not exactly what you’re after in a watch, this works well on phone.
you set all your ports and they show as hands on a 24 hour clock then you turn the clock to some point in the future or past and it shows you the time then.
https://apps.apple.com/au/app/world-clock-pro-mobile/id969635117
For. BCMG at 1500, turn the UTC to 1500 and it’ it’ll show the LT if you have it as a time.
Last edited by compressor stall; 4th Jul 2022 at 09:27.