Can "Sadwrn" mean "Saturday" by itself or only when it's grouped with a time of day?
You see it on calendars and in combinations e.g. "ysgol Sadwrn" (Saturday school), but you'd used it with "dydd" when refering to "Saturday" on its own. Just like you can't say "Satur" on its own in English.
How come some of these tell me to put ''dydd'' in between the day of the week and the time of day, and others don't?