Guide to Quiet Hours

Quiet hours are specific times during the day when you should avoid sending text messages to your subscribers (e.g., early in the morning, late at night, when they are sleeping, etc.). In addition to a bad customer experience, messages sent during these hours often lead to higher unsubscribe rates and a greater likelihood of customer complaints and spam reporting.

While there are no explicit federal laws outlining quiet hours for promotional text messages, TCPA and FCC guidance suggests that text messages should not be sent before 8 am and after 9 pm in the recipient's local time zone. Further, Florida, Oklahoma, and Washington state laws imposed stricter requirements that state text messages can only be sent between the hours of 8 am and 8 pm in the recipient’s local time zone.

To be safe, you should only send texts during the hours of 8 am to 8 pm in the recipient's local time zone.

How Postscript Approaches Quiet Hours


At Postscript, we've implemented safeguards to assist shops in complying with quiet hours when sending campaigns and automations. These safeguards also allow shops to target subscribers at times that make sense across the contiguous U.S.

Postscript prevents you from sending campaigns and automations during SMS quiet hours. For more information on how quiet hours affect automations and campaigns, check out the tabs below.

Automations and Automation Flows Campaigns and Campaign Flows
If a subscriber triggers a legacy automation or an automation flow during quiet hours, Postscript will hold off sending the automation message until waking hours begin in the subscriber's timezone.

Quiet Hours Explained


Postscript's current global waking hours are as follows:

  • Global legacy campaign waking hours:
    • 5 am - 8 pm PT (US/CAN excluding Florida, Oklahoma, and Washington)
    • 8 am - 8 pm local time (Florida, Oklahoma, and Washington)
  • Global legacy automation, automation flow, and campaign flow waking hours:
    • 8 am - 9 pm local time (US/CAN excluding Florida, Oklahoma, and Washington)
    • 8 am - 8 pm local time (Florida, Oklahoma, and Washington)

    Note: "local time" refers to waking hours that are observed in the subscribers' local timezone based on their phone numbers.

Compliance Best Practices


While broad campaign hours allow shops to send geographically targeted legacy campaigns during the waking hours across the country, Postscript recommends that you segment your legacy campaign sends such that messages are only sent between 8 am and 8 pm in each recipient's local time zone.

Automations are triggered by an action a subscriber takes (abandoning a cart, browsing a product, etc.) and fire automatically, so we employ the most conservative nationwide waking hours window to ensure compliance without shop oversight.

If a user subscribes to (or unsubscribes from) your store during quiet hours, Postscript will still promptly send opt-in or opt-out messages as required by federal law.

Note: SMS quiet hours affect Florida, Oklahoma, and Washington subscribers differently due to Washington and Florida state legislation. Learn about Florida SMS quiet hours here and Washington SMS quiet hours here. For information about Oklahoma SMS quiet hours, see here.

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Have questions? Please feel free to reach out to our wonderful Support team at support@postscript.io or via live chat. You can also submit a support request here!

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