April 4
April 4 is the 95th day of the year in the Gregorian calendar; 271 days remain until the year's end. It falls in spring (northern hemisphere) and under the astrological sign of Aries.
Day of year
95
Days remaining
271
ISO week
14
Zodiac
Aries
Season
Spring
Sun declination
+5.6°
External references
Curated jump-off points to the major almanacs, encyclopaedias and primary sources for this date.
Wikipedia: this day →Britannica: this day →LoC: Today in History →History.com: this day →On-This-Day.com →BBC: On This Day →NYT: this day →Time and Date →NASA APOD archive →U.S. Naval Observatory →Wolfram|Alpha →Wikidata →Google Books →JSTOR →Internet Archive →
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Astronomy
Computed via Cooper's formula. Positive declination = Sun north of the celestial equator (Northern Hemisphere summer).
On April 4 the Sun's declination is approximately +5.6°. At this latitude the Sun is north of the celestial equator, giving the Northern Hemisphere longer days than nights.
For specific rise/set times at your location, see the U.S. Naval Observatory, or the NASA APOD archive for any imagery published on a April 4.
Position in the year
Holidays & observances
- Independence Day — Senegal (1960)
- International Day for Mine Awareness (UN)
Events
A selection of widely-documented historical events that took place on this date. Years marked BCE follow standard astronomical convention.
- 1581 — Sir Francis Drake completed his circumnavigation of the world and was knighted by Queen Elizabeth I. ↗(445 years ago)
- 1841 — U.S. President William Henry Harrison died of pneumonia after just 31 days in office. ↗(185 years ago)
- 1949 — Twelve nations signed the North Atlantic Treaty in Washington, D.C., creating NATO. ↗(77 years ago)
- 1968 — Civil-rights leader Martin Luther King Jr. was assassinated at the Lorraine Motel in Memphis, Tennessee. ↗(58 years ago)
Notable births
Notable deaths
- 1968 — Martin Luther King Jr. ↗(58 years ago)
Numerical & calendrical curiosities
| Day-of-year (95) | 5 × 19 · composite (no) |
|---|---|
| Days remaining (271) | 271 |
| Date code DDMMYYYY | 04042026 · no palindrome in next 200 years |
| Sun declination | +5.59° (Cooper approximation) |
| Distance from solstice | 77 days |