CI Time duration calculator

This tool calculates the exact duration between two points in time, whether on the same day or across multiple dates. It is designed for business owners tracking employee work hours, freelancers logging billable time, or anyone needing precise time intervals without manual calculation.

• Same-day duration calculator: Enter two times on the same day to get results in hours, minutes, seconds, and decimal formats. The "now" button auto-fills the current time for quick use.
• Multi-date calculator: Input start and end dates (with optional times) to compute elapsed days, hours, minutes, and seconds. Handles varying month lengths and leap years automatically.
• Multiple output formats: Displays results as decimal hours, decimal minutes, and seconds, making it easy to convert for payroll or project tracking.
• No manual math required: Avoids errors from converting AM/PM to 24-hour time or counting days across months. The calculator performs all conversions instantly.
• Free and accessible: No software installation or subscription needed. Works in any browser on desktop or mobile devices.