2026 Monday-Start Calendar FAQ
Which months of 2026 start on a Monday?
In 2026, June starts on a Monday, so it has no blank cells in the first row of a Monday-start calendar.
How many Mondays are in 2026?
2026 has 52 Mondays. The first is Monday, January 5, 2026.
When does the first full Monday-to-Sunday week of 2026 start?
The first Monday of 2026 is Monday, January 5, 2026. ISO week 1, the week that holds the first Thursday of January, starts on Monday, December 29, 2025.
Why start the week on Monday?
The ISO 8601 standard and most of Europe count Monday as the first day of the week. Saturday and Sunday then sit together at the end of each row, which makes weekends easy to see and lines up with ISO week numbers.
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