Date tools
8 tools tagged with “Date”
Age Calculator
Calculate exact age in years, months, weeks, and days, or find time between dates with precise date arithmetic. Accounts for leap years, different month lengths, and provides detailed breakdowns. Perfect for determining age, calculating project durations, tracking time until events, or finding time since past events with accurate calendar calculations.
Calculators · Education Calculators
Age Calculator Pro
Calculate precise age from date of birth with years, months, days, and total days. Includes leap year handling, next birthday calculation, age verification for legal purposes, and detailed breakdown with audit trace for accuracy.
Developer Utilities · Calculators
Date Calculator
Calculate date differences, add or subtract days, and find dates between two points in time with precise calendar arithmetic. Accounts for leap years, different month lengths, calculates exact day counts, and supports multiple date formats. Perfect for project planning, age calculations, deadline tracking, and determining durations between events.
Calculators · Time & Date Calculators
Date Calculator Pro
Add or subtract days, weeks, months, and years from any date. Calculate future or past dates for project planning, deadlines, scheduling, and date arithmetic. Supports leap years, month-end handling, and multiple date formats.
Developer Utilities · Date & Time Tools
Date Difference Calculator
Calculate the precise difference between two dates in years, months, weeks, days, hours, minutes, and seconds. Supports inclusive/exclusive end dates, business days calculation, and multiple date formats for accurate time span analysis.
Developer Utilities · Date & Time Tools
Date to Timestamp
Convert any date and time to Unix timestamp (seconds or milliseconds since epoch). Supports multiple date formats, timezone conversion, and provides both seconds and milliseconds timestamps for use in programming, APIs, and databases.
Developer Utilities · Date & Time Tools
ISO 8601 Converter
Convert dates and times to ISO 8601 format (YYYY-MM-DDTHH:mm:ssZ) and parse ISO 8601 strings to readable dates. Supports multiple input formats, timezone handling, and provides week dates and ordinal dates for international date standards compliance.
Developer Utilities · Date & Time Tools
Pregnancy Conception Calculator
Calculate conception date based on due date or last menstrual period with estimated conception window calculations. Works backwards from due date (subtracting 266 days) or forwards from LMP (typically 11-21 days after), accounts for ovulation timing variations, and provides most likely conception dates. Helpful for understanding pregnancy timeline and fetal development stages.
Calculators · Pregnancy Calculators