SMS has a 90–98% open rate, but not all opens are equal. A message that arrives when someone is free, relaxed, and in a shopping mindset converts at 5–10x the rate of one that lands during a hectic commute or late at night. Here's the complete timing guide built from 2025 benchmark data across millions of messages.
Legal Rule First — TCPA Quiet Hours: You must never send marketing SMS messages before 8:00 AM or after 9:00 PM in the recipient's local time zone. This is a federal requirement under the TCPA. Violating quiet hours can result in fines of $500–$1,500 per message. All times in this article fall within the legal window.
Best Days of the Week
Good
Best
Best
Good
Good
Varies
Avoid
Tuesday and Wednesday consistently deliver the highest open and click-through rates across industries. Monday sees high open rates (people are catching up) but lower click-through (less in a buying mindset). Friday afternoons work well for time-limited weekend deals. Saturday is strong for retail and restaurants, weak for B2B. Sunday is almost universally the lowest-performing day — reserve it only for critical operational messages.
Best Times of Day
Within those days, three sending windows consistently outperform others:
Highest open rate window
Best click-through rate
Strong conversion window
Windows to avoid:
- 8 AM – 9 AM: Legal, but open rates are low. People are commuting or just starting work.
- 12 PM – 1 PM: Lunch is a grey zone. People are away from their desk or eating — passable but not optimal.
- After 7 PM: Conversion drops sharply. Even if people open, they're less likely to take action at night. Avoid for anything requiring a purchase.
By Industry: Timing Benchmarks
Frequency: How Often Is Too Often?
This is where many businesses lose subscribers. Studies show 49% of SMS subscribers are comfortable receiving 1 promotional text per week. Sending more often than this sharply increases opt-out rates, even if your content is good.
- 1–4 promotional messages per month — the sweet spot for most industries
- Transactional texts (reminders, confirmations, order updates) — subscribers are far more tolerant of these, even daily, because they requested and expect them
- Re-permission campaigns: If you've been inactive for 6+ months, send a re-opt-in message before resuming — don't assume old consent is still valid
A/B Test Your Timing: Aggregate data is a starting point — your specific audience may behave differently. Split your list: send 50% on Tuesday at 10 AM and 50% on Wednesday at 5 PM. Measure open rates and conversions for 4 weeks, then standardize on the winning window.
Seasonal & Event-Driven Exceptions
Standard timing rules bend around major events. Adjust your strategy for:
- Black Friday / Cyber Monday: Saturday/Sunday texting is fully acceptable; consumers expect and welcome deal messages all weekend
- Valentine's Day / Mother's Day: Send 5–7 days early (not day-before) to capture planners, then a day-of reminder for last-minute shoppers
- Super Bowl / NCAA Final Four: Restaurants and bars — send 2 hours before kickoff, not the week before
- Back to School: Late July–August — Tuesday through Thursday mornings perform best for this seasonal push