Date & Birthday Tools

Use age, birthday, date-difference, countdown, and zodiac calculators for Gregorian dates, lunar birthdays, and practical calendar facts.

• Age Calculator [LIVE_TOOL] - Calculate exact age, birthday facts, zodiac signs, next birthday, and Chinese lunar birthday from a Gregorian birth date.
• Birthday Calculator [LIVE_TOOL] - Enter a birth date to calculate birthday facts, next birthday timing, weekday details, milestones, and shareable date notes.
• Birthday Countdown [LIVE_TOOL] - Enter a birthday to calculate how many days remain until the next occurrence, with weeks, months, next-date details, and shareable birthday countdown text.
• Date Difference Calculator [LIVE_TOOL] - Compare two Gregorian dates and see the exact difference in total days, weeks, months, years, and practical calendar breakdowns.
• Western Zodiac Calculator [LIVE_TOOL] - Enter a Gregorian birthday to find the Western zodiac sign, date range, symbol, element, modality, and clear cultural notes.