Ad scheduling sets the days and hours a Google Ads campaign is allowed to show. It is set per campaign, runs in the account's time zone, and allows up to six time periods per day. For a B2B SaaS on Smart Bidding, most non-brand Search campaigns should run around the clock and let bidding handle time of day. Use a schedule only where it changes the outcome: call campaigns that need a person to answer, demo flows that depend on fast sales follow-up, or a budget too small to cover every hour.
How to set up an ad schedule in Google Ads
- Open the campaign you want to schedule.
- Go to Ad schedule in the campaign menu.
- Click the edit (pencil) icon.
- Choose the days (All days, Mondays–Fridays, or a single day) and the start and end time for each period.
- Add up to six periods per day, then save.
Two details catch international SaaS teams out. Schedules use the account's time zone, so a London account targeting New York needs its hours translated. And a schedule applies to the whole campaign, so if two regions need different business hours they need separate campaigns (see location targeting for B2B SaaS).
Ad scheduling and Smart Bidding: what still works
On Target CPA, Target ROAS, Maximize Conversions or Maximize Conversion Value, the schedule's on/off hours still apply, but schedule bid adjustments are ignored. Smart Bidding already sets a bid for every auction using time of day and day of week as signals, so a +20% Tuesday-morning adjustment does nothing. What still changes delivery is excluding hours entirely, which also removes those hours from the data the algorithm learns from. More on which adjustments still matter in do bid adjustments still work under Smart Bidding?
When a B2B SaaS should restrict hours (and when not to)
| Situation | Schedule | Why |
|---|---|---|
| Call ads or call assets on a sales line | Business hours only | An unanswered call from a qualified buyer is the most expensive click you can buy |
| Non-brand Search on Smart Bidding, demo or trial goal | 24/7 | Evening and weekend researchers are real buyers; bidding already discounts weak hours |
| Brand campaign | 24/7 | Anyone searching your name at any hour is high intent, and competitors bid on it |
| Very small budget that runs out by mid-afternoon | Business hours in the buyer's time zone | Stops night clicks using up the budget before the hours your buyers work |
| Campaign targeting another region from one account | Local business hours, translated to the account time zone | Otherwise the schedule runs on your time, not theirs |
The common mistake is switching off nights and weekends because cost per lead looks higher then. A lead at 10pm that books a meeting the next morning is worth the same as one at 10am. Before cutting hours, check whether those hours produce fewer SQLs, not just pricier leads.
How to read your hour-of-day data properly
- Use the deepest conversion you import. Segment by day and hour on SQLs or opportunities imported from the CRM, not on form fills. A lead-level view will push you toward the hours that produce the cheapest leads.
- Remember Google records the conversion at the click time. A Friday-evening click that becomes an SQL on Tuesday counts for Friday evening, which is the right view for scheduling.
- Wait for enough volume. Splitting a few dozen monthly SQLs across 168 hours produces noise. Compare broad blocks (business hours, evenings, weekends) rather than single hours.
- Check the CRM side too. If off-hours leads convert worse because nobody follows up until the next afternoon, the fix is the follow-up, not the schedule.
Schedule around sales coverage, not around Google
For a sales-led SaaS with an SDR team, the real question behind ad scheduling is speed to lead. If demo requests that arrive outside working hours wait 14 hours for a reply, they convert worse whatever hour the ad ran. Two fixes beat turning ads off:
- Let buyers book a meeting straight from the form with a calendar router, so an evening lead leaves with a slot rather than a promise of a call.
- Feed lead quality back to Google with offline conversion imports. If off-hours leads really are worse, Smart Bidding will learn it and bid those hours down without you having to guess (see offline conversion tracking for B2B SaaS).
If the actual problem is that budget runs out early in the day, look at pacing before you look at the schedule: demand-led budget pacing explains how Google spreads spend now.
Next step
Ad schedules are one of the settings a B2B SaaS Google Ads audit checks against your CRM data, alongside bidding, tracking and wasted spend. For a quick self-check first, run the free 10-point Google Ads audit.