Best Time to Cold Call: Find Yours in Your Data

The best time to cold call is the hour your own contacts answer and say yes, and it is different for every list. Published studies disagree because they measure different audiences, so treat any best hour you read as a starting guess. Test two or three windows that fit the people you call, log an outcome for every dial, and compare results by local hour and weekday, always inside the legal window.

For telemarketing calls to US consumers, that window is 8 a.m. to 9 p.m. in the called person’s local time, and narrower in some states. The rest of this guide shows what the studies found, why they conflict, and how to run your own test.

What do the published studies say?

The published studies on the best time to cold call mostly measure B2B calls, and they don’t agree on the hour. Two well-documented examples:

The two don’t measure the same thing. Revenue.io counted connections on calls of every kind, so warm calls lift the morning figures. Belkins counted positive outcomes on cold campaigns, and it notes that its timing data reflects the client verticals it calls for and should be treated as a starting hypothesis. Belkins also points out that 9 to 11 a.m. gets the most dial volume, which may be part of why it performs worse: everyone else is calling then too.

More figures, with their caveats, are collected in our cold calling statistics roundup.

Why does generic best-time advice fail?

Generic advice fails because each study measures a different mix of industries, roles and list sources, often years ago. Results from software sales reps calling inbound leads say little about a solar company calling homeowners, or a recruiter calling nurses between shifts.

Three things decide when your contacts pick up:

• Their working day. Office workers, business owners, field technicians, nurses and retirees are free at very different times.
• How warm the list is. People who asked to be called answer at almost any reasonable hour; cold lists are far more sensitive to timing.
• Their time zone. A 9 a.m. call from New York reaches California at 6 a.m., which is both pointless and outside the legal window.

Use published advice to decide what to test, not what to believe.

Which hours are you allowed to call?

For telemarketing calls to consumers, the FCC’s rules under the TCPA allow telephone solicitations only between 8 a.m. and 9 p.m. at the called person’s location (47 CFR 64.1200). The FTC’s Telemarketing Sales Rule sets the same window for calls to a person’s home (16 CFR 310.4).

Several states are stricter: some end at 8 p.m., a few start at 9 a.m., and some ban Sunday or holiday calls. The state-by-state detail lives in our guide to telemarketing calling hours by state. Calls to business lines are generally outside the federal windows, but calling outside office hours rarely reaches anyone anyway. This is general information, not legal advice.

Write the limits down for each list: which states it covers, the earliest and latest local time, and the days you may call. That becomes the outer box for every experiment below.

How do you find your best hours in your own data?

You find your best hours by logging an outcome on every call and comparing rates per local hour once each slot has enough dials. Step by step:

1. Log an outcome for every call. Connected, no answer, voicemail, callback and not interested are the minimum. Without outcomes you can count dials but not conversations. These outcomes are called call dispositions.
2. Measure in the contact’s local time. A 2 p.m. call means different things in Miami and Seattle, so convert each call’s timestamp to the contact’s time zone before grouping. An area code time zone lookup helps for a quick check.
3. Group by hour and weekday. For each slot, count dials, connects and the result you care about most, such as meetings booked.
4. Compare rates, not totals. The slot with the most dials is simply the one you called most. Look at connects per dial and conversions per connect.
5. Wait for enough calls. A few hundred dials per slot is a sensible minimum before you trust a difference.
6. Change one thing at a time. Move one calling block, keep the list and the script the same for a couple of weeks, then compare.

Windows worth testing first

These are starting hypotheses, not findings. Each row is a reason to test a window, not proof that it works for your list.

What is the best day to cold call?

For B2B lists, start with midweek. In Belkins’ 2026 data, Wednesday produced 0.95% positive outcomes per dial and Friday 0.51% (Belkins). That is one agency’s campaigns, not a law of nature.

Test days the same way as hours: run the same list and script on Monday mornings, midweek and Friday afternoons, then compare conversions per dial. Consumer lists often answer better on weekday evenings and Saturdays, inside the legal window.

Use retries to sample different hours

The people who did not answer at 10 a.m. may answer at 4 p.m. Retrying unanswered numbers a few hours later, or the next day, raises your reach and spreads each contact across different times of day, which also gives you better data. Deciding how many times to call a lead sets the limit.

Retrying the same number every few minutes does the opposite. It annoys people and piles up short, unanswered calls that hurt a number’s reputation with carriers (see why Twilio calls show as Spam Likely).

Finding your best time in Rapidialer

Rapidialer gives you the pieces for this without extra tools:

• Calling hours per list. Under List settings, open Dialing rules and turn on Calling hours; the window starts at 09:00 to 20:00, Monday to Friday, and you can change it. The queue checks each contact’s local time, worked out from the phone number’s area code or your organization’s fallback time zone, and contacts outside the window wait. The window applies to list dialing; numbers dialed by hand are up to the rep. (Calling hours)
• Retry rules. Turn on Retry unanswered contacts to bring them back after delays you choose; the defaults are 4 hours after no answer and 24 hours after voicemail, up to a maximum number of attempts you set.
• An outcome on every call. Power Dial does not move to the next contact until the rep logs an outcome, so every dial counts in your data.
• A best-time-to-call heatmap. Call analytics include a grid of connect rate by the lead’s local weekday and hour, 8 a.m. to 8 p.m., over the last 90 days, so your own answer pattern shows without a spreadsheet.
• Analytics and export. Analytics also show connects and outcomes by rep and by list, and the call history CSV export includes each call’s start time, duration, outcome, list and rep if you want to slice it further.
• Callbacks at the promised time. Logging a Callback outcome creates a follow-up reminder for the time the lead asked for.

Repeat the comparison every quarter. Seasons, holidays and new list sources all shift when people answer.