Month Calendar Generator

Renders a Sunday-start month grid you can copy or print with header like February 2026 plus Su Mo Tu We Th Fr Sa and zero-padded days aligned by first weekday offset. February 2026 starts Sunday with twenty-eight days in three rows plus partials. All generation runs locally with no uploads, ideal for family plans.

How grid alignment works for USA planners: Days in month come from Date year month zero trick that returns last day of prior month context. FirstDow from Date year month-1 one getDay gives zero Sunday through six Saturday. Leading blanks pad before day one, then days flow left to right top to bottom with new rows every seven cells. Zero padding keeps columns monospaced for copy into Notepad, Slack, and email across Eastern to Pacific offices.

USA week-start norms and holidays: Sunday-start matches wall calendars, Outlook default, and school planners from Florida to Washington. Monday-start ISO used by some European teams differs by one column and shifts deadlines. Federal holidays like Labor Day first Monday September and Thanksgiving fourth Thursday November fall visibly in grid for PTO planning. Mark them manually after copying for payroll accuracy.

Printing and sharing tips: Copy plain text into Word with Courier or Consolas monospaced at ten points for one-page months. Screenshot for Instagram stories with emojis added on event days. Paste into Google Docs with heading month year for staff rooms. February leap years show twenty-nine days automatically via Date logic for 2024 and 2028 USA calendars.

Privacy and reliability: Month and year never leave your browser. No accounts or cookies for kids schedules and medical shifts. Works airplane-mode at venues and cabins. Leap, century, and 400-year rules handled by native Date, so 2000 had February 29 while 1900 did not for historical reprints.

Limits and pairings: Text grid only without images, colors, or Monday-start toggle. For weekday names of specific dates, run day-of-week alongside. For business hours within the month, run business-hours with first to last dates and 9-to-5 windows. For lunar or Orthodox Easters marked in April, run easter-date to annotate Sundays.