The most important day of the normal week for Jews would be Shabbat, which is from sundown on Friday to sundown on Saturday. It is called Shabbat because there is a complete cessation of work. There are a number of things which cannot be done on this day, but the most commonly noticed rules are:
1) No Fire or Electricity can be turned on or turned off or used to cook anything
2) No Carrying of any Items between Buildings (this is somewhat circumvented by the concept of an Eruv, but the general idea still holds)
3) No Writing, Drawing, or other similar task
4) No Exchanging of Money or Trading
During this period, Jews go to Synagogue for longer stints of time. Orthodox Jews typically spend between 4.5 to 6 hours every Shabbat in their local synagogues. They must walk to these synagogues since use of a car would be a violation of Rule 1 listed above. They also spend time with their families and eat together and laugh together. People enjoy themselves on Shabbat.
the most important day of the week foe the Bahia's is Wednesday
There is no most important day of the week for a Baha'i, as each day of the week should have time set aside for giving praise to the Creator.
The Sabbath.
No, it is considered the last day of the week.
It is important to exercise every day. No day is more important. Your body and your health does not know what day of the week it is, so it needs exercise every day.
They celebrate Shabbat and Havdalah.
Regardless of the day of the week, Jews eat only Kosher foods.
Mass is held every day of the week. Sunday is the most important day, which may be what you are asking about.
Most were killed as soon as practical after arrival. The others had to work up to 11 hours a day, 6 days a week.
nothing happens
Friday is most important day of week for Muslims due to Jumma Prayer and Saat-e Ajabat .
Jews do not call the sabbat "Saturday", it is called 'Shabbat'. Shabbat happens to start Friday at sundown and ends Saturday at sundown, the 7th day of the week.