title: Fire Shift Calendar: Find Your A, B or C Platoon Day on Any Date
url: https://boardspy.site/blog/fire-shift-calendar/
type: Article
dateModified: 2026-10-15
publisher: BoardSpy
quick_answer: Quick answer: A fire shift calendar shows which platoon, A, B or C, is on duty each day. On a 24/48 the three platoons take turns one day each, so the pattern repeats every 3 days and lands on the same weekdays every 21 days. On a 48/96 each platoon works two days in a row, and the weekday grid repeats every 42 days.
primary_keyword: fire shift calendar
keywords[4]{term}:
  fire shift calendar
  firefighter shift calendar
  fire department shift calendar
  shift calendar fire department
faqs[6]{q,a}:
  What is a fire shift calendar?,A fire shift calendar is a color-coded calendar that marks which platoon, usually A, B or C, is on duty each day. It follows the department's rotation, most often a 24/48 or a 48/96, and it repeats, so one known tour date tells you every other date.
  How does a 24/48 firefighter shift calendar work?,Each platoon works one 24-hour tour and then has 48 hours off, so A, B and C take turns one day each. The pattern repeats every 3 days and lines up with the same weekdays every 21 days, which makes a 3-week grid the whole calendar.
  What do A, B and C shift mean in a fire department?,They are the names of the three platoons that share a 24-hour rotation. Each platoon works the same hours on the same pattern, offset by one tour. Being on B shift means you work every day the calendar marks B.
  How do I know which platoon is working today?,Count the days since a date you know A worked. On a 24/48, divide by 3: a remainder of 0 is A, 1 is B and 2 is C. On a 48/96, divide by 6 from the first day of A's 48: 0 or 1 is A, 2 or 3 is B, 4 or 5 is C.
  How many days a year does a firefighter work on a 24/48?,Before Kelly days, vacation or trades, each platoon works 121 or 122 tours in a 365-day year and 122 in a leap year. At 24 hours each, that is 2,904 or 2,928 hours.
  Can I get a fire department shift calendar on my phone?,Yes. In BoardSpy, tap the 24/48 or 48/96 preset, set one date your platoon works, and add your Kelly interval if you have one. The app fills the next 120 days and adds a leave-by alarm timed to live traffic before each tour.
citations[3]{name,url}:
  eCFR, 29 CFR 553.230: Maximum hours standards for employees engaged in fire protection activities,https://www.ecfr.gov/current/title-29/subtitle-B/chapter-V/subchapter-A/part-553/subpart-C/section-553.230
  U.S. Department of Labor, Fact Sheet #8: Law Enforcement and Fire Protection Employees Under the FLSA,https://www.dol.gov/agencies/whd/fact-sheets/8-flsa-police-firefighters
  Polk County, Florida: Polk County approves new three-year agreement with firefighters union (July 8, 2025),https://www.polkfl.gov/news/polk-county-approves-new-three-year-agreement-with-firefighters-union/
internal_links[7]{label,url}:
  2027 firefighter shift calendar,https://boardspy.site/blog/firefighter-shift-calendar-2027/
  48/96 schedule,https://boardspy.site/blog/48-96-schedule/
  Kelly day,https://boardspy.site/blog/kelly-day/
  24/48 schedule with Kelly days,https://boardspy.site/blog/24-48-schedule-kelly-day/
  24/48 shift calendar 2027,https://boardspy.site/blog/24-48-shift-calendar-2027/
  48/96 shift calendar 2027,https://boardspy.site/blog/48-96-shift-calendar-2027/
  Shift calendar maker,https://boardspy.site/tools/shift-calendar-maker/