Pentaweeks
Pentaweeks provide a structured approach to organizing the working year that balances focused work periods with regular breaks for reflection and planning.
The Philosophy
Traditional quarterly planning often feels rigid and disconnected from the natural rhythm of work. Pentaweeks offer an alternative: eight focused five-week sprints throughout the year, each followed by a dedicated planning week. This creates a sustainable cadence that allows for deep work while ensuring regular opportunities to step back, assess progress, and adjust direction.
How It Works
The pentaweek system automatically adjusts to each calendar year, starting with the first Monday on or after January 4th. This ensures the system never encroaches on New Year's period while guaranteeing it completes by December 22nd.
From this calculated start date, the pattern establishes itself: one week of planning followed by five weeks of focused execution (a pentaweek). After four complete pentaweek cycles, there's a natural mid-year break of two weeks. The system then continues with four more pentaweek cycles, completing by late December and leaving time for year-end activities.
This dynamic approach means pentaweeks adapt to different calendar years while maintaining their core structure and benefits.
The Annual Rhythm
The rhythm begins with the calculated start date—typically the first or second week of January. The first pentaweek (planning plus five execution weeks) establishes the year's momentum.
Spring brings the second, third, and fourth pentaweeks, each maintaining the six-week cycle. After completing four cycles by late May or early June, the system provides a natural two-week mid-year break.
Summer resumes with the fifth pentaweek, followed by the sixth, seventh, and eighth cycles throughout fall. The system automatically completes by December 22nd at the latest, providing natural year-end downtime that varies slightly each year but always respects the calendar boundaries.
Dynamic Start Dates
Each year's pentaweek schedule is calculated automatically based on the first Monday on or after January 4th. This ensures:
- Consistent Structure: Always 8 pentaweeks with 4 cycles, 2-week break, then 4 more cycles
- Calendar Respect: Never starts before January 4th, never ends after December 22nd
- Year Adaptation: Accommodates the varying ways calendar years begin and end
For 2025 specifically, pentaweeks start on January 6th and follow the standard pattern, but other years will have different dates while maintaining the same structural integrity.
Available Formats
This calendar system provides pentaweek schedules in multiple formats to suit different workflows:
Interactive HTML Calendar
The default view provides a responsive, visual calendar showing all pentaweeks for a given year. Perfect for quick reference and planning overview.
Markdown Format
Clean, readable text format ideal for including in documentation, README files, or any markdown-compatible system. Access via /pentaweeks/[year].md.
iCal Format
Standard calendar format that can be imported into any calendar application (Google Calendar, Apple Calendar, Outlook, etc.). Individual year calendars available at /pentaweeks/[year].ics.
Permanent Subscription Calendar
For ongoing use, subscribe to the permanent calendar at /pentaweeks/pentaweeks.ics. This calendar automatically covers from 2025 through two years beyond the current year, updating as time progresses without requiring manual re-imports.
The permanent calendar is particularly useful for: - Setting up once and having pentaweeks appear automatically - Long-term planning spanning multiple years - Sharing a single calendar URL that stays current