utils logo UTILS
Free online tools to generate, calculate,
convert, format, encode, and play.
 

Calendar Utils

Date and calendar utilities. Calculate ages, find day-of-week, convert between calendar systems, track moon phases, and plan with date math.

Age Calculator
Calculate your exact age in years, months, days, hours, and minutes. Find out how many days until your next birthday.
Business Days
Calculate working days between two dates, excluding weekends and optional holidays.
Calendar Viewer
View any month and year, see day of week for any date, and navigate through months easily.
Chinese Zodiac
Find your Chinese zodiac animal sign based on your birth year. Learn about your characteristics and compatibility.
Date Calculator
Calculate the difference between two dates, add or subtract days/months/years, and find dates in the future or past.
Date Formater
Convert dates between different formats including ISO 8601, Unix timestamp, and custom date formats.
Day of Week
Find out what day of the week any date falls on. Calculate historical or future dates.
Event Countdown
Count down to birthdays, weddings, holidays, vacations, and other important events.
Hebrew Calendar
Free online Hebrew (Jewish) calendar converter. Convert between Gregorian and Hebrew calendar dates.
Horoscope
Find your astrological sign based on your birth date. Learn about your personality traits and compatibility.
ICS Calendar Viewer
ICS calendar viewer. Upload an .ics file, parse it in your browser, view events in a sortable table or monthly calendar, filter and export them.
ICS File Generator
create calendar events with title, date, time, recurrence, and reminders, then export as a .ics file for Google Calendar, Outlo...
Islamic Calendar
Free online Islamic (Hijri) calendar converter. Convert between Gregorian and Islamic dates easily.
Julian Calendar
Convert between Gregorian and Julian calendar dates.
Meeting Time Zone Finder
Find the best overlapping hours for participants across multiple time zones. Schedule international meetings easily.
Moon Phase
Find the moon phase for any date, see lunar calendar, and track full moons and new moons.
Printable Calendar
Generate clean monthly or yearly calendars for any year with week-start and notes options. Print or save as PDF.
Tide Calculator
Estimate high and low tide times and heights using astronomical harmonic constituents.

Feedback

Help us improve this page by providing feedback, and include your name/email if you want us to reach back. Thank you in advance.


Share with