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Calculate shift hours, patterns, and night differential pay
Night shift workers typically earn 10-15% more than day workers through shift differentials, sometimes up to 20% in healthcare.
Nurses often work 12-hour shifts (7am-7pm or 7pm-7am). This '3-on, 4-off' pattern is popular in hospitals.
8-hour shifts originated in factories during the Industrial Revolution. Robert Owen coined '8 hours work, 8 hours rest, 8 hours sleep' in 1817.
Rotating shift workers get 2-4 fewer hours of sleep per week. Night shifts can increase health risks by disrupting circadian rhythms.
Pilots can work up to 14-hour flight duty periods. Some oil rig workers do 12-hour shifts for 14+ consecutive days.
Police and firefighters often work 24-hour shifts followed by 48-72 hours off, known as the '24/48' or '24/72' schedule.
In France, night work (9pm-6am) adds €5-15/hour. Japan's 'shift work allowance' can be 25-50% of base pay.
The DuPont schedule (12-hour shifts rotating over 4 weeks) gives workers every other weekend off plus 7 consecutive days off each month.