Most advice about the best time to cold call traces back to one study from 2007. Phones have changed a little since then — spam labels, call screening, everyone carrying a mobile. So instead of recycling a decade-old number, we pulled our own: 128,998 outbound calls from OptimalDial’s internal calling data, and looked at when people actually pick up.
The short answer is the one you’d half expect: late morning to midday — 11 AM to 1 PM Eastern, peaking around noon. The more useful answer is that the hour barely matters next to who you call. We’ll show both, with the numbers.
When people actually pick up, by hour
Across those 128,998 calls, 9.3% reached a live person. “Reached a live person” means a real human answered — voicemail, machine pickups, and no-answers all count as misses, which is a stricter bar than the vague “connect” most tools report.
Here’s the breakdown by hour. Times are U.S. Eastern; leads span the country, so read this as a nationwide pattern in Eastern time:
| Hour (ET) | Calls | Answer rate | vs. 9.3% avg |
|---|---|---|---|
| 9:00 AM | 4,390 | 9.4% | +1% |
| 10:00 AM | 56,546 | 8.7% | −6% |
| 11:00 AM | 28,852 | 10.4% | +12% |
| 12:00 PM | 13,948 | 9.8% | +5% |
| 1:00 PM | 8,311 | 11.3% | +22% |
| 2:00 PM | 2,901 | 6.9% | −26% |
| 3:00 PM | 10,164 | 7.8% | −16% |
| 4:00 PM | 3,579 | 8.8% | −5% |
The shape is intuitive: answer rates climb through late morning, peak around midday (1 PM was the single best hour at 11.3%), then dip hard after lunch. Grouped into windows, 11 AM–1 PM is the peak at 10.4% — about 12% above average — and 2–4 PM is the trough at 7.9%.
One thing worth flagging, because it cuts against instinct: the hour reps dialed most — 10 AM, with 56,546 calls — actually answered slightly below average. The popular hour and the best hour aren’t the same. (We made too few calls after 5 PM to say anything reliable about evenings, so we won’t.)
The finding that actually matters: who beats when
Picking the right hour moved our answer rate by a few points. Picking the right contacts moved it by a multiple.
In our own outbound campaigns, when we dialed only the contacts our system scored “Likely Answer,” connect rate in the same hours ran 2–3× the full-list baseline. Head-to-head, where we have solid volume on both sides:
| Hour (ET) | Full-list baseline | Likely-Answer only | Lift |
|---|---|---|---|
| 10:00 AM | 8.7% | 16.95% | ~1.9× |
| 11:00 AM | 10.4% | 25.46% | ~2.4× |
| 12:00 PM (noon) | 9.8% | 27.27% | ~2.8× |
| 1:00 PM | 11.3% | 21.16% | ~1.9× |
| 2:00 PM | 6.9% | 19.66% | ~2.8× |
Across the 11 AM–1 PM peak window, the full list reached a live person 10.4% of the time; calling only the likely answerers connected 24.4% — about 2.3×. Same phones, same hours, same market. The only thing that changed was which names got dialed.
That gap is the whole reason Answer Intent exists: it scores every contact on a list for how likely they are to pick up, so reps spend their dials on the people who actually answer — at any hour. The clock sets the floor; who you call sets the ceiling.
There’s a structural reason time-of-day keeps getting weaker, too: people screen calls now. Across 53,434 mobile numbers we dialed, 14.9% — about 1 in 7 — were screened by iOS Call Screening or Google Call Screen at least once. A screened number doesn’t ring any differently at the “golden hour.” What changes the outcome is calling someone who’s inclined to answer in the first place.
Best day of the week to cold call
Day-of-week is a weak lever, and the data says so twice over. In the full-list baseline, Tuesday answered highest and Thursday lowest — but only a ~10% spread top to bottom:
| Day | Full-list baseline | Likely-Answer only |
|---|---|---|
| Monday | 9.4% | 23.28% |
| Tuesday | 9.9% | 16.27% |
| Wednesday | 9.0% | 25.33% |
| Thursday | 8.7% | 24.52% |
| Friday | 9.4% | 22.25% |
Two takeaways. First, the who-you-call lift holds every single day — every weekday connected at roughly 2–2.8× its baseline once we dialed only the likely answerers. Second, the two datasets don’t even agree on the best day: Tuesday led the full list, Wednesday led the optimized campaigns, and Tuesday was actually the lowest there. When your strongest and weakest signals can’t agree on a ranking, that’s your sign the effect is small. So don’t agonize over the calendar — just call.
The worst time to cold call
If there’s a window to protect against, it’s 2–4 PM Eastern, which connected 7.9% of the time — about 15% below average — with 2 PM the single worst reliable hour at 6.9%. It’s the post-lunch dead zone, and now it’s measured rather than assumed. When you’ve only got so many dials in a day, don’t spend them there; move them to late morning, or to a better-prioritized list.
Best time to make sales calls (vs. cold calls)
The best time to make sales calls overlaps with cold calling but isn’t identical. Warm and scheduled calls — callbacks, demos, renewals — connect across a much wider window, because the person already expects to hear from you; the best time for those is simply whenever they agreed to talk. The numbers above are from cold outbound, where you’re catching people unscheduled, which is exactly why they cluster into that late-morning-to-noon band.
What about B2B specifically?
The same shape holds for B2B outbound — late-morning-to-midday peak, post-lunch trough. We don’t split this particular dataset into B2B versus B2C, so we won’t invent a separate B2B-only window. As general guidance: B2B decision-makers are most reachable around the edges of the workday, while consumer calls skew later.
One compliance note, not legal advice: under the federal TCPA, telemarketing calls are allowed 8 AM–9 PM in the called party’s local time — and several states are stricter (narrower hours, weekend limits). Check the rules for the states you dial into.
Why this beats the usual advice
Almost every “best time to cold call” article on the internet cites the same 2007–2008 InsideSales/MIT study, sometimes a 2017 one. Those predate widespread spam labeling and call screening — the two things most responsible for tanking connect rates today. The numbers here come straight from OptimalDial’s own recent calling data, and they get refreshed, so they describe the phone landscape as it actually is now, not as it was fifteen years ago.
The honest limit: a table like this tells you the average best hour, not your list. The hour is worth a few points. Knowing which of your specific contacts will pick up is worth a multiple — and that’s the part a calendar can’t give you.
How to put it to work
- Default your calling blocks to 11 AM–1 PM, in the prospect’s local time, and treat 2–4 PM as the window to avoid when you can.
- Don’t overthink the day — every weekday performs about the same once your list is prioritized. A well-scored list beats the “perfect” day.
- Prioritize who you call. This is the lever that actually moves the number. Score your list with Answer Intent and dial the likely answerers first.
- Keep your numbers clean. A “Spam Risk” or “Scam Likely” flag cuts connect rate by roughly 70% — no hour overcomes a flagged number. Spam Monitoring tests yours daily on real devices.
Both Answer Intent and Spam Monitoring come in every OptimalDial plan — it layers on top of whatever dialer you already use, CSV in, CSV out.
Frequently asked questions
What is the best time to cold call?
By OptimalDial's 2026 data, the best time to cold call is 11 AM–1 PM Eastern, peaking around noon, with 1 PM the single best hour (11.3% answer rate) against a 9.3% daily average. But the hour is a small lever — calling only the contacts most likely to answer connected at about 24% in that window, roughly 2.3× the full list.
What is the best day to cold call?
Tuesday answered highest in our full-list data (9.9%) and Thursday lowest (8.7%), but it's only about a 10% spread — and once we dialed only likely answerers, the ranking shifted and every weekday landed within a few points of each other. Day-of-week barely matters; who you call matters far more.
What is the worst time to cold call?
The 2–4 PM Eastern window, at 7.9% — about 15% below average — with 2 PM the lowest reliable hour at 6.9%. It's the classic post-lunch dip.
Is 7 PM too late to cold call?
Our data thins out after 5 PM, so we can't put a number on the evening. As guidance, B2B reachability tends to fall once the workday ends. For B2C, the federal TCPA permits telemarketing calls until 9 PM in the prospect's local time, though some states set stricter hours.
Does the time of day really matter much?
A little. The best window ran about 12% above the daily average, and the best day about 10% above the worst. The far bigger lever is which contacts you call — prioritizing likely answerers connected about 2.3× more in our campaigns.
How many cold calls should I make a day?
Dial count is the wrong target. At a 9.3% answer rate, 200 unprioritized dials reach a live person maybe 18–19 times. A prioritized list connects at more than double that rate, so the goal is conversations per hour, not dials per day.