Time Calculator
Calculate time intervals, time addition/subtraction, timezone conversion and working hours
Quick Actions
Usage Instructions
• Time Interval: Calculate duration between two time points
• Time Add/Subtract: Add or subtract hours, minutes, seconds from a base time
• Timezone Conversion: Convert time from one timezone to another
• Work Time: Calculate daily, weekly, monthly work hours
• Format Conversion: Convert between time format and decimal hours
Time Knowledge
• 24-Hour Format: 00:00-23:59, avoids AM/PM confusion
• Time Zones: World divided into 24 time zones, adjacent zones differ by 1 hour
• UTC: Coordinated Universal Time, international time standard reference
• Daylight Saving: Some regions advance clocks by 1 hour in summer
• Work Hours: Standard workday is typically 8 hours, 40 hours per week
• Decimal Time: 1 hour = 1.0, 30 minutes = 0.5, 15 minutes = 0.25