Start: Week 21 started on Sunday, May 20, 2018 End: Week 21 ends on Saturday, May 26, 2018
Current week number is displayed according United States capital's local time and country calendar rules.
Week rules in United States calendar
Current week number is according to United States calendar. Sunday is the first day of week and Saturday if the last day of the week.
The first week of the year is the week that contains January 1st, the first day of the year.
How many weeks in a year?
Number of weeks in a year is 52 weeks total, so the maximum week in 2018 year is week 52. 20 weeks passed in 2018 excluding current week 31 weeks left in 2018, until next 2019 year starts, excluding current week