Night shift explained
A night shift covers the overnight hours — typically 10 pm to 6 am, though exact times vary. It is the last of the three standard shifts in a 24-hour operation, and it goes by a different name depending on where you work.
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What is it?
What is a night shift? A night shift is the overnight work shift, usually between 10 pm and 6 am or similar hours. If you searched for graveyard shift, overnight shift, or third shift, you are usually looking for this same overnight block.
A night shift is the overnight working period — the stretch between late evening and early morning when most of the world is asleep. It typically begins between 10 pm and midnight and ends between 6 am and 8 am.
In a three-shift system, night is the third shift. In a two-shift day/night pattern, it is the second. On a 12-hour rotating pattern, night shifts commonly run 7 pm – 7 am or 8 pm – 8 am. Repeating blocks like these are exactly what a shift scheduling app automates — see how rotating shift schedules work, or follow a step-by-step setup guide for your pattern.
Night shift's effect on sleep is well studied — a US CDC/NIOSH national study found night-shift workers report roughly double the rate of insomnia and poor sleep quality compared with daytime workers.
Typical hours by shift length
| Shift length | Typical start | Typical end | Notes |
|---|---|---|---|
| 8 hours | 10:00 pm | 6:00 am | Most common in healthcare and manufacturing |
| 8 hours | 11:00 pm | 7:00 am | Common in US / CA operations |
| 10 hours | 10:00 pm | 8:00 am | Used in some emergency services rotas |
| 12 hours | 7:00 pm | 7:00 am | NHS, security, FIFO — fills full overnight |
| 12 hours | 8:00 pm | 8:00 am | Variant used in some factory patterns |
If your rota rotates through back shifts, late shifts, and nights, ShiftFlowr keeps those names separate while still building one continuous pattern calendar.
What's it called where you are?
The same overnight shift has different names depending on where you live and what industry you work in. ShiftFlowr auto-detects your region and uses the terminology your workplace actually uses.
| Region | Common names |
|---|---|
| 🇬🇧 UK | Night, Nights, Night Duty, Night Shift |
| 🇺🇸 US | Graveyard Shift, Third Shift, Night, Overnight |
| 🇨🇦 Canada | Night, Nights, Night Shift, Overnight |
| 🇦🇺 Australia | Night, Night Shift, Nights |
| 🇳🇿 New Zealand | Night, Night Duty, Night Shift |
The term graveyard shift originated in the US and refers to the eerie quiet of working through the early hours of the morning. It is rarely used outside North America.
For Google terms like graveyard shift hours, overnight shift meaning, and third shift, this page is the definition hub. The hours vary slightly by employer, but they all point to the overnight shift.
Who works nights?
NHS nurses, HCAs, paramedics, and care home staff cover overnight shifts to provide 24/7 care. Night duty is a fixed part of most rotating nursing rotas.
Factory and warehouse operations that run continuously rely on a third-shift night crew to keep lines moving.
Police, fire, and ambulance services cover the overnight period with dedicated night-shift crews on 8- or 12-hour rotating patterns.
Security officers, control room operators, and CCTV staff provide overnight coverage, often on 4-on-4-off or Panama patterns that include nights.
How ShiftFlowr helps
On Android, ShiftFlowr's night shift alarm can fire at full volume even if the phone was left in silent or Do Not Disturb mode — exactly what you need before a night shift.
Build your rotating pattern once — 4-on-4-off, Panama, Continental, or custom — and ShiftFlowr fills your night shifts automatically for months ahead.
The salary calculator applies your contracted night-shift enhancement to estimate real take-home before payday.
Common questions
ShiftFlowr builds your rotating pattern once. It fills your night shifts automatically — as many months ahead as you need.
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Other shift types
Or explore ShiftFlowr's full shift pattern library — 11 ready-made rotas, rosters, and schedules for rotating shift workers.