Date & Time

Professional date difference calculator for days, weeks, months, and years between dates. Perfect for project planning, age calculation, and timeline analysis.

Advanced date calculator for adding or subtracting days, weeks, months, and years. Essential for deadline planning, scheduling, and future date calculations.

Professional business days calculator excluding weekends and holidays. Perfect for project management, payroll calculation, and business timeline planning.

Professional hours calculator for total elapsed time, net working hours after breaks, and decimal hours between two datetimes. Supports standard shifts, half days, and overnight shifts for scheduling, contractor billing, work orders, overtime checks, and payroll preparation.

Comprehensive time zone converter for global time coordination, meeting scheduling, and international business communication. Convert time across all world time zones.

Precise age calculator for years, months, days, hours, and minutes. Perfect for birthday planning, legal age verification, and milestone tracking.

Professional Chinese zodiac calculator for birth year analysis, compatibility matching, and personality insights. Discover your zodiac animal and fortune predictions.

Advanced timestamp converter for Unix time, epoch conversion, and datetime formatting. Essential for programming, database management, and system administration.

Professional world clock for real-time global time display, international meeting coordination, and multi-timezone scheduling. Track time across major world cities.

Pet Age Conversion System supports human age conversion for various pets including dogs, cats, rabbits, hamsters, birds, ornamental fish, turtles, and more. It provides detailed life stage analysis and professional care advice, covering growth characteristics, health indicators, and dietary recommendations for different pets. This tool helps pet owners better understand and care for their beloved companions, serving as a thoughtful aid for pet health management and scientific nurturing.

Professional astrology birth chart generator that calculates complete personal natal chart configurations based on precise birth time, date, and location. Provides twelve house planetary distributions, ascendant sign determination, planetary aspect analysis, and personalized astrological interpretations including love and career guidance and inner growth advice, serving as a mystical tool for self-awareness and life planning.

Intelligent multi-country holiday working days calculation system with automatic legal holiday recognition for China, US, and other countries. Accurately calculates working days and weekends, supports both calendar days and working days calculation modes, provides monthly detailed analysis and multi-format export functionality (CSV/Excel/PDF). An essential tool for international business project scheduling, cross-border team collaboration, and payroll calculation.

Convert meeting times across US time zones (ET, CT, MT, PT, Arizona, Alaska, Hawaii) with automatic DST handling.