---
title: "1991 Calendar Monday Start (Printable, Weeks Begin Monday)"
description: "1991 calendar with weeks starting on Monday. January 1 is a Tuesday, the first Monday is Monday, January 7, 1991, and 1991 has 52 Mondays. Free printable Monday-first calendar."
canonical_url: "https://calendarbest.com/calendar/1991/monday-start"
locale: en
meta:
  "og:description": "1991 calendar with weeks starting on Monday. January 1 is a Tuesday, the first Monday is Monday, January 7, 1991, and 1991 has 52 Mondays. Free printable Monday-first calendar."
  "og:image": "https://calendarbest.com/og-image-calendar.png"
  "og:title": "1991 Calendar Monday Start (Printable, Weeks Begin Monday) | CalendarBest"
  "twitter:description": "1991 calendar with weeks starting on Monday. January 1 is a Tuesday, the first Monday is Monday, January 7, 1991, and 1991 has 52 Mondays. Free printable Monday-first calendar."
  "twitter:image": "https://calendarbest.com/og-image-calendar.png"
  "twitter:title": "1991 Calendar Monday Start (Printable, Weeks Begin Monday) | CalendarBest"
---

> Index of every page on this site: [llms.txt](https://calendarbest.com/llms.txt)

[**January 1991**](https://calendarbest.com/calendar/1991/01)21 work days

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[**February 1991**](https://calendarbest.com/calendar/1991/02)19 work days

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[**March 1991**](https://calendarbest.com/calendar/1991/03)21 work days

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[**April 1991**](https://calendarbest.com/calendar/1991/04)22 work days

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[**May 1991**](https://calendarbest.com/calendar/1991/05)22 work days

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[**June 1991**](https://calendarbest.com/calendar/1991/06)20 work days

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[**July 1991**](https://calendarbest.com/calendar/1991/07)22 work days

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[**August 1991**](https://calendarbest.com/calendar/1991/08)22 work days

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[**September 1991**](https://calendarbest.com/calendar/1991/09)20 work days

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[**October 1991**](https://calendarbest.com/calendar/1991/10)22 work days

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[**November 1991**](https://calendarbest.com/calendar/1991/11)19 work days

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[**December 1991**](https://calendarbest.com/calendar/1991/12)21 work days

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## **1991 Monday-Start Calendar FAQ**

### **Which months of 1991 start on a Monday?**

In 1991, April and July start on a Monday, so they have no blank cells in the first row of a Monday-start calendar.

### **How many Mondays are in 1991?**

1991 has 52 Mondays. The first is Monday, January 7, 1991.

### **When does the first full Monday-to-Sunday week of 1991 start?**

The first Monday of 1991 is Monday, January 7, 1991. ISO week 1, the week that holds the first Thursday of January, starts on Monday, December 31, 1990.

### **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.

## **Customize Your 1991 Calendar**

Open 1991 in the builder, add your own events, pick colors and fonts, and export a PDF.

[Customize the 1991 Calendar](https://calendarbest.com/builder?month=1991-01)

```json
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```

```json
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```

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```

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