There are various days of worship in Hinduism.
Monday : Lord Shiva
Tuesday : Loard Ganpati
Wednesday: Lord Brihaspati
Thursday: Loard Dattatraya
Friday : Mata Laxmi
Saturday : Loard Hanumana
Sunday : Loard Surya
However as per Vedas a person should remember god each & every moment of his life while doing his day to day activities.
Friday
sunday
sunday
friday-jumah
Friday (Jumma) is the holy day of the week and the month of Ramazan is the holy month of the year.
The holy day of the week is called 'Shabbat' in Judaism, it starts sundown Friday and ends sundown Saturday.
The First Day.
It is the first day of the holy week.
Yes. Christians, that include Catholics and other Protestants, believe Sunday is a holy day. In Judiasm, Saturday is the holy day.
There is no specific day of the week. Instead, the holy days or "days of rest" are connected to the lunar cycle. Which I believe are full, new and the two halfs meaning that there are still four days a month but are not connected to week days.
Holy Week is the seven day period before Jesus was resurrected. It begins on Palm Sunday - the day which Jesus rode into Jerusalem.
Mass is held every day of the week. Sunday is the most important day, which may be what you are asking about.