Utilities
Essential everyday utilities that make life easier. Calculate dates and times across time zones, generate random numbers and make decisions, take quick notes and create lists, work with maps and coordinates, use digital whiteboards for collaboration, ensure accessibility compliance, manage browser tools, and boost productivity with timers and trackers. Simple, practical tools for common tasks that everyone needs.
Browse public holidays for 199 countries. Filter by holiday type, navigate years, and see the next upcoming holiday at a glance.
Calculate sunrise, sunset, day length, golden hour, and twilight times for any location worldwide.
Calculate your pregnancy due date based on your last period, conception date, or known due date. Track pregnancy progress and key milestones week by week.
View solar and lunar dates side by side with traditional almanac details including Can Chi, zodiac, solar terms, and auspicious hours.
Convert dates between solar (Gregorian) and lunar calendars with Can Chi, zodiac, solar terms, and holiday details.
Add or subtract years, months, weeks, and days from any date to find the resulting date instantly.
Find the week number for any date or look up date ranges by week number. Supports ISO 8601 and US week numbering standards.
Find which day of the week any date falls on. Instantly see the weekday name, ISO day number, week number, and a visual month calendar.
Calculate business days between dates or find a date after adding workdays. Exclude weekends, public holidays, and estimate salary with a visual calendar view.
Create printable monthly and yearly calendars with custom themes, holidays, events, background images, and PDF export.
Calculate the exact number of days, weeks, and months between any two dates with business day counting and calendar visualization.
Run multiple stopwatches simultaneously with lap timing. Track workouts, racing, study sessions, or any timed activities with precision.