septembercalendar This year

September Calendar guides & articles

16 in-depth guides on September Calendar and related topics.

Holidays

Holidays Awareness and Heritage Months: What Each Month Marks A month by month reference of the best known US heritage and awareness months, useful for classroom and workplace calendars. 3 min read Holidays US Holidays by Month (2026) A clear month-by-month walkthrough of US holidays in 2026, with exact dates for every federal holiday plus the popular observances people plan around. 5 min read

Calendar basics

Calendar basics Friday the 13th: How Often Does It Happen? A month has a Friday the 13th when it starts on a Sunday. Every year has at least one and at most three. Here are the dates for 2026 and 2027. 3 min read Calendar basics When Do the Seasons Start? Astronomical vs Meteorological Understand the two systems for season start dates: astronomical vs. meteorological, and which ones to mark on your monthly calendar. 3 min read Calendar basics How Many Days Are in Each Month? The Easy Ways to Remember Learn the quick reference, rhyme, and knuckle mnemonic to remember how many days are in each month. 4 min read Calendar basics September 1752: The Month That Lost 11 Days In September 1752, Britain and its American colonies lost 11 days when they switched from the Julian to the Gregorian calendar. 3 min read

Monthly planning

Monthly planning Calendar Quarters Explained: Q1, Q2, Q3 and Q4 Dates This guide defines the four calendar quarters with exact start and end dates, day counts, and shows how to plan by quarter using monthly printouts. 3 min read Monthly planning February: Facts, Holidays & Observances A practical guide to February: its origin, leap days, birthstone, flowers, and key holidays like Groundhog Day and Presidents' Day. 3 min read Monthly planning January: Facts, Holidays & Observances A practical guide to January: its Roman origin, birthstone and flowers, key holidays, and how to use the month for new year planning. 3 min read Monthly planning December: Facts, Holidays & Observances A practical guide to December covering its name origin, birthstones, flowers, the winter solstice, Christmas, Kwanzaa, New Year's Eve, and year-end planning. 3 min read Monthly planning November: Facts, Holidays & Observances Plan November with facts on holidays, the birthstone, and clock change. Includes Election Day, Veterans Day, and Thanksgiving dates for 2026. 3 min read Monthly planning October: Facts, Holidays & Observances Discover October facts, holidays, and observances: name origin, birthstones, flowers, and key dates for planning the month. 4 min read Monthly planning How to Plan Your Month with a Printable Calendar A practical, repeatable workflow for planning your month with a printable calendar: capture goals, block time, schedule recurring tasks, and review before the next month begins. 5 min read Monthly planning September: Facts, Holidays & Observances Everything worth knowing about September: where its name comes from, its birthstone and flower, its US holidays, the back-to-school season, and the autumn equinox. 5 min read Monthly planning Wall Calendar vs Planner: Which Do You Need? A wall calendar and a planner solve different problems. This guide compares the two by use case and shows how to combine them for a system that covers both the big picture and daily detail. 5 min read Monthly planning Why Print a Monthly Calendar in a Digital World? Phones already hold our schedules, so why print a monthly calendar at all? Because paper offers glanceable focus, effortless family sharing, and a distraction-free view no app can match. 5 min read