Time Duration Calculator

Find the elapsed time between two times, or two dates and times, in hours and minutes. This tool handles shifts that run past midnight, can add up several time spans, and accounts for daylight saving changes. You can choose to include dates for spans longer than a day and optionally include seconds. The calculator provides results in multiple formats: everyday hours and minutes, h:mm:ss for spreadsheet compatibility, decimal hours for timesheets and payroll, and total minutes for easy comparison or billing.

• Handles overnight shifts that cross midnight.
• Supports adding up to 20 different time spans.
• Accounts for US time zones and daylight saving time when dates are included.
• All calculations are performed in the browser, ensuring privacy.

The tool also offers a table of common shift lengths, such as 9 to 5, with pre-calculated durations and options to adjust them directly in the calculator. It clearly explains how time duration is calculated, including the conversion to minutes after midnight and handling of negative results when crossing midnight. The site also addresses common pitfalls like misinterpreting 12 AM/PM, treating minutes as decimals, and the impact of daylight saving time. For more complex needs, it suggests related tools like the Hours Calculator, Days From Today Calculator, and Add and Subtract Time Calculator.