WorldTimePortalUnited States Calendar 2027
with week numbers & holidays
United States monthly calendar 2027 with ISO week numbers
January 2027United States
| Wk | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 53 | |||||||
| 1 | |||||||
| 2 | |||||||
| 3 | |||||||
| 4 |
Federal holidayRegionalSubstitute day offReligious / culturalObservanceClock changeSchool / holiday periodISO week
Clock changes 2027: Clocks go forward 1 hour at 2:00 a.m. on Sunday, March 14, 2027 and back 1 hour at 2:00 a.m. on Sunday, November 7, 2027 (not in Hawaii and most of Arizona).
| Name | Date | Weekday | Week | Day off | Type | Where |
|---|---|---|---|---|---|---|
| New Year's DayFirst day of the Gregorian calendar year. | Friday | 53 | Same day | Federal holiday | Nationwide | |
| Martin Luther King Jr. DayThird Monday of January, honoring civil rights leader Martin Luther King Jr. | Monday | 3 | Same day | Federal holiday | Nationwide | |
| Groundhog DayPunxsutawney Phil predicts whether spring comes early. | Tuesday | 5 | — | Observance | Nationwide | |
| Lunar New YearYear of the Goat begins. | Saturday | 5 | — | Religious / cultural | Nationwide | |
| Ramadan beginsApproximate; depends on moon sighting. | Monday | 6 | — | Religious / cultural | Nationwide | |
| Mardi GrasFat Tuesday, the day before Ash Wednesday; a public holiday in parts of Louisiana. | Tuesday | 6 | — | Observance | Nationwide | |
| Ash WednesdayStart of Lent in Western Christianity. | Wednesday | 6 | — | Religious / cultural | Nationwide | |
| Valentine's DayCelebration of love and affection. | Sunday | 6 | — | Observance | Nationwide | |
| Presidents' DayWashington's Birthday, the third Monday of February. | Monday | 7 | Same day | Federal holiday | Nationwide | |
| Spring break seasonMost schools and colleges take one week off in this window; exact week varies by district. | – | Monday | 10 | — | School & holiday period | Nationwide |
| Eid al-FitrEnd of Ramadan. Approximate; depends on moon sighting. | Wednesday | 10 | — | Religious / cultural | Nationwide | |
| Daylight saving time startsClocks go forward 1 hour at 2:00 a.m. local time (spring forward). | Sunday | 10 | — | Clock change | Nationwide | |
| St. Patrick's DayCelebration of Irish heritage with parades nationwide. | Wednesday | 11 | — | Observance | Nationwide | |
| Good FridayCommemorates the crucifixion of Jesus. Public holiday in some states, stock markets closed. | Friday | 12 | — | Religious / cultural | Nationwide | |
| Easter SundayChristian holiday celebrating the resurrection of Jesus. | Sunday | 12 | — | Religious / cultural | Nationwide | |
| April Fools' DayDay of pranks and hoaxes. | Thursday | 13 | — | Observance | Nationwide | |
| Tax DayUsual deadline for filing federal income tax returns. | Thursday | 15 | — | Observance | Nationwide | |
| Passover beginsFirst day of Passover (begins at sundown the evening before). | Thursday | 16 | — | Religious / cultural | Nationwide | |
| Earth DayGlobal day of environmental awareness. | Thursday | 16 | — | Observance | Nationwide | |
| Cinco de MayoCelebration of Mexican-American culture. | Wednesday | 18 | — | Observance | Nationwide | |
| Mother's DaySecond Sunday of May. | Sunday | 18 | — | Observance | Nationwide | |
| Eid al-AdhaFestival of Sacrifice. Approximate; depends on moon sighting. | Monday | 20 | — | Religious / cultural | Nationwide | |
| Memorial DayLast Monday of May, honoring military personnel who died in service. | Monday | 22 | Same day | Federal holiday | Nationwide | |
| Summer vacation (typical)Typical K-12 summer break; varies by state and district. | – | Monday | 23 | — | School & holiday period | Nationwide |
| Flag DayCommemorates the adoption of the US flag in 1777. | Monday | 24 | — | Observance | Nationwide | |
| JuneteenthNational Independence Day marking the end of slavery in the United States. | Saturday | 24 | Federal holiday | Nationwide | ||
| Father's DayThird Sunday of June. | Sunday | 24 | — | Observance | Nationwide | |
| Independence DayCelebrates the Declaration of Independence of 1776. | Sunday | 26 | Federal holiday | Nationwide | ||
| Labor DayFirst Monday of September, honoring the American labor movement. | Monday | 36 | Same day | Federal holiday | Nationwide | |
| Patriot DayRemembrance of the September 11, 2001 attacks. | Saturday | 36 | — | Observance | Nationwide | |
| Grandparents DayFirst Sunday after Labor Day. | Sunday | 36 | — | Observance | Nationwide | |
| Constitution DayMarks the signing of the US Constitution in 1787. | Friday | 37 | — | Observance | Nationwide | |
| Rosh HashanahJewish New Year 5788 (begins at sundown the evening before). | Saturday | 39 | — | Religious / cultural | Nationwide | |
| Columbus Day / Indigenous Peoples' DaySecond Monday of October. Many states and cities observe it as Indigenous Peoples' Day. | Monday | 41 | Same day | Federal holiday | Nationwide | |
| Yom KippurDay of Atonement (begins at sundown the evening before). | Monday | 41 | — | Religious / cultural | Nationwide | |
| DiwaliHindu festival of lights. | Friday | 43 | — | Religious / cultural | Nationwide | |
| HalloweenCostumes and trick-or-treating. | Sunday | 43 | — | Observance | Nationwide | |
| Daylight saving time endsClocks go back 1 hour at 2:00 a.m. local time (fall back). | Sunday | 44 | — | Clock change | Nationwide | |
| Veterans DayHonors military veterans of the United States Armed Forces. | Thursday | 45 | Same day | Federal holiday | Nationwide | |
| Thanksgiving DayFourth Thursday of November. | Thursday | 47 | Same day | Federal holiday | Nationwide | |
| Black FridayDay after Thanksgiving; start of the holiday shopping season. Many state employees get the day off. | Friday | 47 | — | Observance | Nationwide | |
| Cyber MondayOnline shopping day after Thanksgiving weekend. | Monday | 48 | — | Observance | Nationwide | |
| Winter break (typical)Typical school winter break, usually continuing into early January. | – | Monday | 51 | — | School & holiday period | Nationwide |
| Christmas EveEvening before Christmas Day. | Friday | 51 | — | Observance | Nationwide | |
| Christmas DayChristian holiday celebrating the birth of Jesus. | Saturday | 51 | Federal holiday | Nationwide | ||
| Hanukkah beginsFirst day of Hanukkah; first candle lit at sundown on December 24. | Saturday | 51 | — | Religious / cultural | Nationwide | |
| Kwanzaa beginsWeek-long celebration of African-American culture (Dec 26 – Jan 1). | Sunday | 51 | — | Observance | Nationwide | |
| New Year's EveLast day of the year. | Friday | 52 | — | Observance | Nationwide |
Islamic, Hindu, Jewish and Chinese calendar dates follow the lunar calendar and may shift by a day with moon sighting. School holiday periods are typical dates and vary by region.
2027 week numbers and dates
Find the start and end dates for every ISO week in 2027. Each week runs from Monday to Sunday, including every date between the two. Week 1 is the week containing the year's first Thursday.
For 2027, January 1–3 belong to week 53 of 2026. Week 1 of 2027 starts on January 4, 2027. 2027 has 52 ISO weeks, and week 52 runs from December 27, 2027 to January 2, 2028.
| ISO week | From MondayMonday | Through SundaySunday |
|---|---|---|
| Week 532026 | ||
| Week 12027 | ||
| Week 22027 | ||
| Week 32027 | ||
| Week 42027 | ||
| Week 52027 | ||
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Special days: dates and countdowns
United States 2027 — week numbers & holiday facts
- How many public holidays does United States have in 2027?
- United States has 11 nationwide federal holidays in 2027.
- When do the clocks change in United States in 2027?
- Clocks go forward 1 hour at 2:00 a.m. on Sunday, March 14, 2027 and back 1 hour at 2:00 a.m. on Sunday, November 7, 2027 (not in Hawaii and most of Arizona).
- When is Thanksgiving Day 2027 in United States?
- Thanksgiving Day 2027 is on Thursday, November 25, 2027 (ISO week 47).
- When is Easter Sunday 2027 in United States?
- Easter Sunday 2027 is on Sunday, March 28, 2027 (ISO week 12).
- When is Diwali 2027 in United States?
- Diwali 2027 is on Friday, October 29, 2027 (ISO week 43).
- When is Good Friday 2027 in United States?
- Good Friday 2027 is on Friday, March 26, 2027 (ISO week 12).