Calculate elapsed time, cross-midnight work shifts, unpaid breaks, and gross wage totals.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Enter starting and ending times in either 12-hour AM/PM or 24-hour military notation.
Specify unpaid lunch break duration and optional hourly wage and overtime multiplier.
Inspect total hours, decimal time, and earnings breakdown, then copy summary or download the audit report.
The engine automatically detects when the end time is earlier than the start time and rolls over to the next day (+24 hours) seamlessly.
Yes, exact decimal hours (e.g. 7.75 hrs for 7 hours 45 minutes) are computed in real time for payroll and invoicing.
Never. All time arithmetic and wage formulas execute entirely in client JavaScript with zero data transmission.
Zero-egress companion tools in the Date & Time suite
Convert times across world timezones and compute exact business days.
Convert between Unix timestamps and human-readable UTC/ISO dates.
Calculate exact intervals, working business days, and future date offsets.
Calculate calendar and custom fiscal year quarters starting in any month (e.g. Feb, July, Oct).
