Date reference
October 4, 1999 is a Monday
October 4, 1999 is the 1st Monday of October 1999 and the 277th day of the year.
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Links related to Monday, October 4, 1999
These links connect the date to its weekday, month, calendar, and related pattern pages.
Calendar for October 1999
Use the monthly calendar to see this date in context and move to nearby days.
Use the monthly calendar below to see where October 4, 1999 sits inside October 1999.
- October 1999 started on Friday and ended on Sunday.
- October 1999 had 4 Mondays.
- There were 88 days remaining in 1999 after this date.
- 1999 was not a leap year.
Related patterns
These pattern pages widen the search from one exact date into recurring calendar relationships.
Same 31-day layout and opening Friday.
Years with same calendar as year 1999 21 matching yearsSame leap-year status and January 1 weekday.
Months that have day number 4 falling on a Monday Day-number patternFind every month where day 4 lands on Monday.
Additional facts
The core date facts below answer the most common follow-up questions for this day.
- It is day number 277 of the year, 88 days left.
- It is Monday number 40 out of 52 in 1999.
- It is Monday number 1 out of 4 in October 1999.
- Year 1999 has 365 days.
- October 1999 has 31 days.
October 4, 1999 is the 40th Monday of 1999, with 88 days remaining in the year after it.
About Monday
A quick weekday reference adds context beyond the exact date answer.
Monday is the 1st day of the week in ISO 8601. It comes after Sunday and before Tuesday.
In 1999, Monday appears 52 times, and October 4, 1999 is the 40th Monday of the year.
Use the Monday page to browse more dates that fall on the same weekday.
Read more about MondayAbout October
This month summary helps the date page carry more useful context on its own.
October is the 10th month of the Gregorian calendar and has 31 days in 1999.
In October 1999, the month began on Friday and ended on Sunday.
October sits in Q4, and this month contains 4 Mondays.
Read more about OctoberNearby dates
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