There's No Single National Rule
Landlord entry notice is set state by state, not federally, so the honest first answer is: it depends on where you live. Twenty-seven states set a specific number of hours in their landlord-tenant statute. Among those, 24 hours is by far the most common figure, used by roughly two-thirds of them, including California, Florida, and Ohio. A smaller group requires 48 hours, including Alabama, Arizona, and Washington, and two states set something else entirely — Wisconsin's rule is just 12 hours, and Virginia requires 72 hours specifically for routine maintenance the tenant didn't request (other Virginia entries need only "reasonable" notice at reasonable times, with no set number of hours). A handful more states require notice with no set number of hours: Connecticut, Indiana and Kansas call for "reasonable" notice at "reasonable" times, while North Dakota and New Hampshire go further and require the tenant's agreement to the time rather than notice alone. The rest haven't addressed landlord entry notice in their landlord-tenant code at all; courts there still generally expect some advance notice for a non-emergency entry, based on ordinary lease and property-law principles, even without a specific statute to point to. See the state-by-state table below for your state's exact figure and the statute behind it.
What a Specific Number of Hours Actually Means in Practice
Where a state sets a number, that's typically a floor, not a promise about exactly when your landlord will show up. California's law, for example, says written notice must include the date, approximate time, and purpose of the entry, and that 24 hours is "presumed reasonable" — meaning a court could still decide less than 24 hours wasn't enough given the situation, or that more should have been given for something disruptive (Cal. Civ. Code § 1954(d)(1)).
Several states go further and limit the hours of the day an entry can happen at all, separate from how much advance notice is required. The District of Columbia restricts entry to 9 a.m. to 5 p.m. except on Sundays and federal holidays, unless the tenant agrees otherwise (D.C. Code § 42-3505.51). Maryland limits entry to 7 a.m. to 7 p.m., Monday through Saturday, unless the tenant agrees in writing to something else (Md. Code, Real Prop. § 8-221). Delaware's window runs 8 a.m. to 9 p.m., with an exception for repairs the tenant specifically requested (25 Del. C. § 5509(b)). A landlord who is technically inside the notice window but shows up outside hours like these — 7 a.m. in a state that limits entry to normal business hours, for instance — can still be violating the law, even with otherwise-valid notice on paper.
When No Notice Is Required at All
Every state carves out an emergency exception. A burst pipe flooding the unit below, a gas leak, a fire, or anything that threatens immediate harm to a person or serious property damage lets a landlord enter without any advance notice. Several states extend this to a unit the tenant has abandoned or surrendered — California's statute waives notice for that reason too (Cal. Civ. Code § 1954(e)(3)).
What doesn't count as an emergency: a landlord wanting to "check on things," a maintenance issue that can wait a day, a delivery, or general curiosity about how you're keeping the place. Say a pipe under your kitchen sink starts a slow drip — that's a repair to schedule with notice, not an emergency that justifies walking in unannounced. A pipe that bursts and is actively flooding the unit below you is a different situation, and the law treats it that way.
If Your Lease Tries to Waive This Right
Some leases include language letting the landlord enter "at any time" or "without notice." Where your state sets a specific notice requirement by statute, a clause like that generally doesn't hold up — tenants usually can't sign away a protection a state statute creates, and a landlord who relies on it anyway is still violating the law. Say your lease reads "Landlord may enter the premises at any time for any purpose" and you live in a state with a 24-hour statutory requirement: a court asked to enforce that clause would typically look to the statute rather than the lease language, because a statutory right generally isn't something a private contract can override.
In the minority of states with no statute on the books at all, there's less for a lease clause to conflict with, so what your lease actually says carries more practical weight — read it before you sign, or before you assume your landlord is automatically in the wrong for entering with limited notice.
What to Do If Your Landlord Isn't Following the Rules
Keep a simple log every time it happens: the date, the time, what occurred, and whether any notice was given beforehand. If notice was given, save it — a text, an email, or a paper notice slipped under the door all count as a record you can point back to later.
A pattern of short or missing notice is worth raising in writing before it escalates. A dated illegal entry complaint letter puts your landlord on notice that you know the rule and are tracking violations, which on its own tends to change behavior — most landlords would rather fix a process problem than deal with a documented pattern. If it keeps happening after that, it can shade into harassment or a violation of your right to quiet enjoyment, which carries its own remedies separate from the entry-notice statute itself. Upload your lease to Honestkey and it flags clauses and fees that may not hold up under your state's law, so you're not guessing at whether your lease's language matches the law.