What is the day number and ISO week for Friday, October 1, 2021?

It is day 274 of the year and ISO week 39 (Q4).

Historical Date Profile 1,807 days ago (4 years, 11 months, 11 days ago)

Friday, October 1, 2021

Q: What day of the week is Friday, October 1, 2021?

Friday, October 1, 2021 falls on a Friday.

Q: What is the moon phase and zodiac sign on Friday, October 1, 2021?

The moon phase is Waning Crescent and the zodiac sign is Libra.

Friday, October 1, 2021 is a Friday. It is day 274 of 2021 (75.1% through the year), ISO week 39, in Q4.

Calendar dial and astronomical representation

Yesterday Sep 30, 2021 Today Sep 12, 2026 Tomorrow Oct 2, 2021 1 Year Ago Oct 1, 2020 1 Year Later Oct 1, 2022 Date Math Calculate Diff

Calendar Specifications

Comprehensive Date Metrics for Friday, October 1, 2021

ISO 8601 & Astronomical

Day of Year 274 / 365 75.1% of 2021 passed

Days Left in Year 91 days Remaining until Jan 1, 2022

ISO Week Number Week 39 Quarter Q4

Day Classification Weekday Friday

Roman Numeral Date I.X.MMXXI Day.Month.Year

Julian Day Number (JDN) 2,459,488.5 Astronomical continuous count

Unix Epoch Timestamp 1633089600 Seconds since Jan 1, 1970 UTC

Moon Phase & Illumination Waning Crescent 26% illuminated

Astrological Zodiac Sign Libra Sun Sign

Calendar Season Autumn in the Northern Hemisphere, spring in the Southern Hemisphere Northern hemisphere season

Leap Year Status Common Year (365 days) February has 28 days

Time Elapsed / Countdown 1,807 days ago (4 years, 11 months, 11 days ago) Relative to today

Holidays & Observances

October 1

Daily prompt A practical day to plan, reflect, and check time zones

Date Overview & Context

Calendar Overview

Friday, October 1, 2021 combines practical calendar facts with a wider view of the day: the historical record for this date. Use it to check the date, plan across time zones, and scan the observances and historical markers attached to October 1.

Share October 1 as a quick date, history, and timezone reference.

Calculate exact days from today →

Historical Milestones

On This Day in History: October 1

0 Recorded Events

Historical records for October 1 are documented across archival sources.

Notable Births on October 1

Famous figures

Notable births are archived on Wikipedia's daily calendar.

Notable Memorials & Deaths

In Memoriam

Notable deaths are archived on Wikipedia's daily calendar.

Explore Related Calendar Utilities

Free Online Tools

Date Difference Calculator

Calculate business days and elapsed calendar time between this date and any other.

Milestone Countdown Timer

Track a live ticking countdown to this date with days, hours, minutes, and seconds.

World Timezone Planner

Compare working hours across New York, London, Tokyo, Sydney, and more.

Perpetual Day of Week Engine

Learn the mathematical algorithm and calendar quirks behind weekdays.

Questions & Answers

Frequently Asked Questions about Friday, October 1, 2021

What day of the week was or is Friday, October 1, 2021?

Friday, October 1, 2021 falls on a Friday.

How many days ago or from now is Friday, October 1, 2021?

1,807 days ago (4 years, 11 months, 11 days ago). It is day 274 of 2021 with 91 days remaining in the year.

What is the Roman numeral format for Friday, October 1, 2021?

In Roman numerals, Friday, October 1, 2021 is written as I.X.MMXXI (Day.Month.Year format).

What was the moon phase and zodiac sign on Friday, October 1, 2021?

The moon phase for this date is Waning Crescent (approx. 26% illuminated). The astrological sun sign is Libra.