Yes.
Yes, you always capitalize a day of the week.
Saturday (always capitalize the "s")
In the salutation "Good day to you," you only need to capitalize the first word, "Good."
The first day of the week is Sunday.
Yes you should the first letter, though not all letters. They are proper nouns.
It is common to capitalize the word "Sunday" when referring to the day of the week, as it is the name of a specific day. However, in some cases and contexts (such as informal writing), it may not be necessary to capitalize it.
It is often said that Monday is the first day of the week, but it is only the first day of the working week, not the actual week. Sunday is the first day of the week. See the related question below.
Sunday is the first day of the week but Monday is the first day of the work and school week.
ofcourse I do capitalize THeday of Weekdays like Monday,Teusday,Wednesday, Thursday,Friday but if the word weekday is not neccessarilly needed to capitalize UNLESS if it is the 1st word in the sentence you're making....
Sunday has always been the first day of the week.
Yes, always capitalize Thursday because it is a propernou n.
Many calendars will show Monday as the first day, because it is normally the first day of the working week, but Sunday is actually the first day of week in all countries, including Mexico. So Monday is not the first day of the week.