Add Business Days to Date - Add or subtract business days from any starting date, automatically skipping weekends and holidays from 13 country calendars. Multi-milestone timeline, skip-day trace, and printable calendar view. New

Birth Day of the Week Calculator - Discover what day of the week you were born, your zodiac signs, birthstone, and explore your upcoming birthdays. Featured

Business Days Calculator - Calculate business days between two dates by excluding weekends and selectable public holidays from 12+ countries, with custom workweek and custom-holiday support. New

Calendar - Create beautiful printable monthly and yearly calendars for any year from 1 to 3999. Features today highlighting, leap year indicators, and print-ready designs.

📅 Date Calculator - Add or subtract days, weeks, months, and years to/from a date with step-by-step calculations, interactive visualizations, and comprehensive date insights. Featured

📅 Date Difference Calculator - Calculate the exact years, months, days, weeks, hours, and minutes between any two dates. Includes age calculation, business days count, milestone tracking, and visual timeline. New

Date Pattern Generator - Generate a list of recurring dates by pattern: every N days, every N weeks on chosen weekdays, monthly on a day-of-month, the Nth weekday of each month, or last weekday. Skip weekends and holidays, bound by end date or count, and export to CSV, Markdown, or ICS calendar feed. New

Day of the Week Calculator - Find the day of the week for any date. Features visual calendar display, historical context, day characteristics, and detailed date information with zodiac signs and seasons.

Day of the Year Calculator - What Day of the Year Is It Today? - Find what day of the year it is with our interactive calculator. See year progress, week number, quarter, days remaining, and a visual calendar view for any date. Featured

Day of Year Calendar - Find the day number (1-365/366) for any date. Interactive calendar with year progress tracker, week numbers, quarter breakdown, and instant lookup for 2026. Featured

Days Between Two Dates - Calculate the exact number of days, weeks, months, and years between two dates with visual timeline, business days calculation, and detailed time breakdown.

Days in Month - Calculate the number of days in any month for any year with visual calendar display, leap year detection, and historical date information.

Halfway Date Calculator - Find the exact midpoint date between any two dates. Perfect for planning anniversaries, project milestones, pregnancy halfway points, or relationship anniversaries — with quarter-point milestones, time-progress visualization, and a printable timeline. New

Hebrew Calendar Converter - Convert any date between the Gregorian calendar and the Hebrew (Jewish) calendar, fully bi-directional. See the Hebrew month name, the date written in traditional Hebrew gematria letters, the weekday in Hebrew, the leap-year (Adar I/Adar II) and Shabbat flags, the year-length type, the Jewish holiday landing on that day, and a live countdown to the next Rosh Hashanah, Hanukkah, Passover and Yom Kippur. New

Hijri Calendar Converter - Convert any date between the Gregorian calendar and the Hijri (Islamic) calendar, fully bi-directional. See the Arabic month name, the date in Arabic-Indic numerals, the weekday in Arabic, the sacred-month and leap-year flags, the Islamic holiday landing on that day, and a live countdown to the next Hijri New Year, Ramadan, Eid al-Fitr and Eid al-Adha. New

How Long Ago Calculator - Calculate exactly how long ago any past date or moment was — in years, months, weeks, days, hours, minutes, and seconds. With a live ticking counter, multi-unit breakdown, life-percentage view, and a printable timeline of milestones. New

How Long Until Calculator - A live, second-by-second countdown to any future date or date-and-time. See years, months, days, hours, minutes, and seconds remaining — with animated ticking, smart event presets (New Year, Christmas, next Friday 5 PM, summer solstice), a copyable summary, and a shareable link. New

Is it April Fool's Day? - Check if today is April Fool's Day. See a live countdown to the next April 1st, explore the history and global traditions of April Fools' Day, and discover famous pranks from around the world.

Is it Christmas? - Check if today is Christmas Day (December 25th) with a live countdown timer, days remaining, fun facts, and Christmas celebration details from around the world.

Lunar Calendar Converter - Convert any date between the Gregorian (solar) calendar and the Chinese lunisolar (lunar) calendar. Instantly see the zodiac animal, Heavenly Stem and Earthly Branch (Gan-Zhi) pillars, Five Element nayin, leap-month detection, and traditional Chinese festivals — fully bi-directional from 1900 to 2100. New