Good to Know
Noteworthy events which are not actual holidays. Good addition to the Holidays calendar.
US Federal Holidays
This list contains only actual holidays. See Good to Know calendar for other noteworthy events.
Sun
Sunrise, sunset, solar eclipses, dawn and dusk twilights and other events related to the Sun.
Good to Know
Noteworthy events which are not actual holidays. Good addition to the Holidays calendar.
US Federal Holidays
This list contains only actual holidays. See Good to Know calendar for other noteworthy events.
Sun
Sunrise, sunset, solar eclipses, dawn and dusk twilights and other events related to the Sun.
Ages of famous people
Shows the day when you have reached the same age as famous people reached in their lifetime.
Paid Account
New
Awareness Days
Days intended to raise awareness of health, social or environmental issues.
Good to Know
Noteworthy events which are not actual holidays. Good addition to the Holidays calendar.
US Federal Holidays
This list contains only actual holidays. See Good to Know calendar for other noteworthy events.
National Holidays from Other Countries
National holidays from a country you choose. The events can be machine translated into another language.
Pets and Wild Animals
Holidays, awareness days and funny observances related to pets and other animals.
The End Of The World
Various doomsday predictions. If the prediction is unspecific, the date is set on the last possible day of the prediction.
Day Numbers
Day numbers from 1 to 365 (366). Can skip holidays and weekends if necessary.
Week Numbers
Week numbering according to European, American or Middle Eastern standard.
Jewish Holidays (Diaspora)
Jewish holidays for people living outside of Israel (Diaspora).
Earthquakes
When the Moon is close to the Earth and aligned with the Sun, there is a slight increase in the severity and likelihood of volcanic eruptions and earthquakes.
Meteor showers
IMO.net
Shows known meteor showers. On these nights you can expect to see shooting stars in the atmosphere.
Sun
Sunrise, sunset, solar eclipses, dawn and dusk twilights and other events related to the Sun.
Tides
WorldTides.info
Tides (high tide and low tide) for many locations. They are calculated based on the nearest station, so all locations are not available.
Independence Days
Independence days for all countries. Some countries have more than one independence/national day.
International Fixed Calendar
Wikipedia
Also known as the Cotsworth plan, the Cotsworth calendar and the Eastman plan.
Ages of famous people
Shows the day when you have reached the same age as famous people reached in their lifetime.
Paid Account
New
Anniversaries
Shows birthdays and anniversaries and how long time has elapsed from each one.
Menstrual Cycle
The phases of your menstrual cycle. Requires that your menstrual cycle is fairly regular.
Pregnancy
KidsHeath.org
Weekly information on how your pregnancy proceeds and what is happening inside your womb.
Reversed History
Shows events from history which are as far before your birthday as current day is after it. Makes you feel old.
Time From Now
Shows how far in the future or past a certain event is. Can be used when waiting for something.
Weight Guard
Define your weight and target weight. This calendar reminds you to weigh yourself and tells you what your current weight should be.