What is the latest time one may pray Mussaf, and what is the status of one who delays past seven hours?

ShabbatPrayerMussaf

Synopsis

L'chatchila Mussaf must be completed by the end of the seventh hour. One who prays after seven hours is called a sinner (poshea) but has fulfilled his obligation, since Mussaf's time extends all day. If the entire day passes without praying, there is no make-up (tashlumin).

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

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