Week 12 of 2029 runs March 19, 2029 to March 25, 2029.
Week 12 starts on Monday, March 19, 2029 and ends on Sunday, March 25, 2029. It's the 78th day of the year, sits in Q1, and falls in March. By the end of this week, 84 of 365 days are gone, putting 2029 at 23%.
There are no public holidays this week, so all 5 weekdays are working days. Need a different week? Browse the full 2029 week calendar, or jump to this week's number.
Week 12 at a glance
The 7 days of week 12
Every date in week 12 of 2029, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 78 | Weekday | ||
| Tuesday | Day 79 | Weekday | Spring Equinox (Vernal) | |
| Wednesday | Day 80 | Weekday | ||
| Thursday | Day 81 | Weekday | ||
| Friday | Day 82 | Weekday | ||
| Saturday | Day 83 | Weekend | ||
| Sunday | Day 84 | Weekend |
What week 12 of 2029 means
ISO 8601 numbers weeks so every week starts on Monday and ends on Sunday. Week 1 is the one holding the year's first Thursday, which is why early January can land in week 52 or 53 of the previous year. Week 12 is one piece of that system.
In 2029, week 12 covers Mar 19 – Mar 25, 2029. That's March, deep in Q1. The same week number shifts by a day or two each year, so week 12 in 2030 won't share these exact dates. The table below shows how it moves.
Want to check a specific date instead of a week number? The week calculator converts any date to its ISO week. Curious how many weeks a year holds? The weeks in a year guide explains 52 versus 53. And the ISO week number page covers the standard end to end.
Holidays in week 12 of 2029
🇺🇸 United States
🇬🇧 United Kingdom
Daylight Saving Time — Spring Forward
Observance🇨🇦 Canada
🇦🇺 Australia
Week 12 across years
The same ISO week number lands on different dates each year. Here's how week 12 shifts.
| Year | From (Mon) | To (Sun) | Notable | |
|---|---|---|---|---|
| 2026 | view → | |||
| 2027 | Good Friday Easter Sunday | view → | ||
| 2028 | view → | |||
| 2029 THIS YEAR | ||||
| 2030 | view → |
Week 12 of 2029: questions and answers
What days are in week 12 of 2029?
Week 12 of 2029 runs from March 19, 2029 (Monday) through March 25, 2029 (Sunday). It spans March.
What month is week 12 in 2029?
Week 12 of 2029 falls entirely in March 2029.
How many working days are in week 12 of 2029?
Week 12 of 2029 has 5 working days.
What week is Spring Equinox (Vernal) in 2029?
Spring Equinox (Vernal) falls in ISO week 12 of 2029 (Mar 19 – Mar 25, 2029).
What quarter is week 12 of 2029 in?
Week 12 of 2029 is in Q1 (2029). The week starts on day 78 of 365.
What is ISO week 12?
ISO week 12 is defined by the ISO 8601 international standard. It begins on Monday, March 19, 2029, and ends on Sunday, March 25, 2029. It is week 23% through the ISO year 2029.