Week 1 of 2020

December 30, 2019 (Monday) to January 5, 2020 (Sunday)

← Week 1 of 2020 Week 2 →
ISO Week Number
Week 1
2020 · Week 1 of 53 total weeks

What dates are in Week 1 of 2020?

Week 1 of 2020 runs from December 30, 2019 (Monday) to January 5, 2020 (Sunday). This is the 1th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Dec 30
Day 364
Tue
Dec 31
Day 365
Wed
Jan 1
Day 1
Thu
Jan 2
Day 2
Fri
Jan 3
Day 3
Sat
Jan 4
Day 4
Sun
Jan 5
Day 5
Starts December 30, 2019 Monday · Day 364
Ends January 5, 2020 Sunday · Day 5
Duration 7 days 2020 · 53-week year

📅 Nearby weeks in 2020

Week 1Week 2Week 3

📋 All 53 weeks in 2020

12345·678910·1112131415·1617181920·2122232425·2627282930·3132333435·3637383940·4142434445·4647484950·515253

📆 Week 1 in other years

Week 1 · 2021

🔧 Related tools

Week Number Calculator Date to Week 2020 Full Calendar

❓ Related questions about Week 1 of 2020

What day of the week is Dec 30?

Dec 30 is a Monday. It is the first day of Week 1 of 2020.

What day of the week is Jan 5?

Jan 5 is a Sunday. It is the last day of Week 1 of 2020.

What is the ISO week number for Dec 30?

Dec 30 is in Week 1 of 2020 according to ISO 8601.

What is the ISO week number for Jan 5?

Jan 5 is in Week 1 of 2020 according to ISO 8601.

❓ Frequently asked questions about Week 1 of 2020

What dates are in Week 1 of 2020?

Week 1 of 2020 runs from December 30, 2019 to January 5, 2020.

Which day of the year does Week 1 start on?

Week 1 of 2020 starts on December 30, 2019, the 364th day of 2019.

Does Week 1 of 2020 fall entirely within 2020?

Yes, all 7 days of Week 1 of 2020 fall within 2020.

How many weeks are in 2020?

2020 has 53 weeks according to ISO 8601.