Week 1 of 2023 runs January 2, 2023 to January 8, 2023.
Week 1 starts on Monday, January 2, 2023 and ends on Sunday, January 8, 2023. It's the 2nd day of the year, sits in Q1, and falls in January. By the end of this week, 8 of 365 days are gone, putting 2023 at 2.2%.
There are no public holidays this week, so all 5 weekdays are working days. Need a different week? Browse the full 2023 week calendar, or jump to this week's number.
Week 1 at a glance
The 7 days of week 1
Every date in week 1 of 2023, Monday through Sunday, with day-of-year numbers and events.
| Day | Date | Day no. | Type | Events |
|---|---|---|---|---|
| Monday | Day 2 | Weekday | ||
| Tuesday | Day 3 | Weekday | ||
| Wednesday | Day 4 | Weekday | ||
| Thursday | Day 5 | Weekday | ||
| Friday | Day 6 | Weekday | ||
| Saturday | Day 7 | Weekend | ||
| Sunday | Day 8 | Weekend |
What week 1 of 2023 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 1 is one piece of that system.
In 2023, week 1 covers Jan 2 – Jan 8, 2023. That's January, deep in Q1. The same week number shifts by a day or two each year, so week 1 in 2024 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 1 of 2023
🇬🇧 United Kingdom
Week 1 across years
The same ISO week number lands on different dates each year. Here's how week 1 shifts.
| Year | From (Mon) | To (Sun) | Notable | |
|---|---|---|---|---|
| 2024 | New Year's Day | view → | ||
| 2025 | New Year's Day | view → | ||
| 2026 | New Year's Day | view → |
Week 1 of 2023: questions and answers
What days are in week 1 of 2023?
Week 1 of 2023 runs from January 2, 2023 (Monday) through January 8, 2023 (Sunday). It spans January.
What month is week 1 in 2023?
Week 1 of 2023 falls entirely in January 2023.
How many working days are in week 1 of 2023?
Week 1 of 2023 has 5 working days.
What quarter is week 1 of 2023 in?
Week 1 of 2023 is in Q1 (2023). The week starts on day 2 of 365.
What is ISO week 1?
ISO week 1 is defined by the ISO 8601 international standard. It begins on Monday, January 2, 2023, and ends on Sunday, January 8, 2023. It is week 2% through the ISO year 2023.