If you work on a mandatory rest day in Mexico (article 74 of the Federal Labor Law), you are owed two payments: the rest day is already paid (1×), plus double pay for the service performed (2×). That totals triple your daily wage, as PROFEDET explains. The daily wage is your monthly salary divided by 30.
daily wage = monthly salary ÷ 30
rest pay = daily wage × holidays worked
service pay = daily wage × 2 × holidays worked
day total = rest pay + service pay (= 3×)
Example: MXN 9,000 a month and 1 holiday → daily 300 → rest 300 + service 600 = MXN 900. If your monthly salary already includes the rest day, the extra is double pay: MXN 600.
Mandatory rest days are: January 1st; the first Monday of February (February 5th); the third Monday of March (March 21st); May 1st; September 16th; the third Monday of November (November 20th); October 1st every six years with a presidential transition; December 25th; and election days set by electoral law. At most 9 per year.
This is not overtime (arts. 66 and 68) nor the Sunday premium (art. 71, 25% for working Sunday as an ordinary day). It excludes income tax and IMSS. Not legal advice. Not U.S. holiday pay rules.
Triple in total: paid rest day (1×) + double pay for service (2×), per article 75 of the law and PROFEDET.
Then only the extra applies: double pay (2×). The calculator shows that line separately.
No. Only the federal mandatory rest days in article 74. Local or collective-agreement holidays are paid per each case's own rules.