Date & time tools

0-9

• 12/24 Time Format Converter (AM/PM ↔ 24h) | CalcBE
  Convert 12-hour AM/PM and 24-hour time formats instantly with copy buttons, shareable URLs, and batch conversion.

A

• Age Calculator from Date of Birth (Years, Months, Days) | CalcBE
  Calculate your age from your date of birth: years, months, days, and days until your next birthday. Optional reference date and shareable result link.

B

• Business Days & Countdown Calculator | Skip Weekends | CalcBE
  Count calendar or business days between two dates, exclude custom weekend patterns and holiday lists, and jump forward or backward by N business days. Copy a shareable URL for the full setup.

D

• Date Difference Calculator (days, business days, Y/M/D) | CalcBE
  Compute days between dates, count business days and working hours, and see a year‑month‑day breakdown. Optionally include the start date and copy a shareable result URL.

E

• Event Countdown (Time Remaining) | CalcBE
  Show time remaining until a target date/time with an analog + digital display. Share settings by URL, embed via iframe, and switch local/UTC interpretation.

R

• Recurring counter: counts in range, next date, Nth | CalcBE
  Count how many times a recurring event happens in a date range. Also find the Nth occurrence date or the next occurrence after a reference date.

S

• Speed–Distance–Time Calculator with Pace & ETA | CalcBE
  Calculate speed, distance, or time from the other two. Includes unit conversions, pace output for running, and optional ETA from a start time.

T

• Time duration adder & subtractor (HH:MM/HH:MM:SS) | CalcBE
  Add or subtract multiple HH:MM or HH:MM:SS durations line by line and get a normalized total time. Supports leading +/-, negative totals, spans over 24 hours, and shareable result URLs—runs locally in your browser.
• Time zone converter – instant world clock with multiple cities and offsets | CalcBE
  Enter a date and time to convert between time zones, with automatic daylight‑saving shifts, presets for major cities, and a shareable result link.
• Time Zone Meeting Planner (Best Meeting Times) | CalcBE
  Plan meeting times from participants' time zones and working hours with analog + digital clocks, top suggestions, and an availability matrix.

W

• Week number, quarter and fiscal year calculator | CalcBE
  Get ISO week number, calendar/fiscal quarter, and fiscal year for any date. Customize week rules and fiscal year start month.
• World Clock Board (Multiple Time Zones) | CalcBE
  Compare multiple city times with analog + digital clocks, work-hour highlights, shareable URLs, and JSON export/import.