> 365·243 ought to be 365·2425 exactly: Yes. This is also how it is defined: https://github.com/sharkdp/numbat/blob/ba9e97b1fbf6353d24695b0add0e1d68af6ec07a/n

> 365·243 ought to be 365·2425 exactly: Yes. This is also how it is defined: https://github.com/sharkdp/numbat/blob/ba9e97b1fbf6353d24695b0add0e1d68af6ec07a/numbat/modules/units/time.nbt#L14 https://github.com/sharkdp/numbat/blob/ba9e97b1fbf6353d24695... The calculation above is showing a rounded result (6 significant digits by default).