When an advert should appear depends partly on what happens next. A telephone service with limited staffing has different requirements from an enquiry form that can accept messages at any time.
For a small business, the initial decision can follow the working process. If the advertised telephone consultation is available only in the morning, the campaign should account for that. A form can accept evening enquiries if the page explains when a response should be expected. Do not promise an immediate reply when nobody is handling messages.
Examine the contact route first
Try the advertised journey outside normal opening hours. What does a caller hear? What appears after a form is submitted? Is the next handling period explained? Restricting advertising hours cannot fix an inaccurate expectation already created by the page.
A fictional repair service could advertise telephone appointments during staffed periods. A separate message inviting photographs for later assessment could support different hours. That changes the offered process, rather than merely changing a time setting in the account.
Check the timezone and applicable settings
Google's official ad scheduling instructions explain time restrictions within Google Ads. Review account settings, including the timezone. A schedule planned mentally in local time can otherwise result in different delivery hours.
Account for public holidays, business closures and temporary reductions in availability. A recurring weekly schedule does not automatically represent every exception correctly. Record who checks changes before an absence and reviews the settings after returning.
Avoid inventing an ideal timetable from a few clicks
A report can make particular hours look unusual even when there are very few observations. Compare more than click totals: suitable enquiries and how they are subsequently handled are often more meaningful. Remember that an enquiry may happen later than the first visit.
When changing hours, record the date and reason. Then check whether the intended reduction in workload or improvement in availability actually occurs. The schedule should support an understandable operational decision. It does not need to reproduce every small fluctuation that happens to appear in a short reporting period.
