How Telgorithm Handles Daylight Savings with Time Routing + Smart Queueing

When Daylight Savings hits, time changes—but your messaging compliance and deliverability shouldn’t.

For ISVs managing high-volume A2P 10DLC traffic across multiple states, keeping messages compliant with both carrier rules and time-based restrictions can get complicated fast. Most states observe Daylight Savings, but some don’t, and a few have additional laws about when businesses can send texts (known as “quiet hours”).

The Problem: Time Shifts Can Cause Compliance Risks

If your platform isn’t built to handle time zone changes or state-specific quiet hours, you could accidentally send messages outside permitted time windows—risking regulatory violations, poor user experiences, and lost trust with customers.

Worse, when all those messages pile up after the clock change, you might hit carrier rate limits—triggering failed deliveries that you still pay for.

The Solution: Time Routing + Smart Queueing

Telgorithm’s Time Routing is an out-of-the-box API feature that gives you total control over when queued messages send—or if they should be rescinded altogether.

Here’s how it works:

• You can proactively set specific time periods for sending per Campaign (for example, to avoid carrier resets like T-Mobile’s midnight rate-limit window).
• If a message becomes irrelevant after a certain time—such as a flash sale, 2FA code, or alert—it can automatically expire before it’s sent, preventing wasted spend and potential compliance risks.
  
  
• During events like Daylight Savings or state-mandated quiet hours, Time Routing ensures messages either delay, pause, or cancel as needed, so you stay compliant without manual intervention. 

Read more in our API docs.

Where Smart Queueing Comes In

While Time Routing controls when messages are allowed to send, Smart Queueing controls how they’re delivered once they’re released.

It automatically manages carrier rate limits and network congestion in real time—ensuring optimal throughput, consistent deliverability, and zero spend on failed messages.

Together, these two systems keep your campaigns:

• Compliant with time-based sending laws and carrier policies
• Efficient by preventing outdated or failed message attempts
• Consistent across all time zones and Daylight Savings changes

Why It Matters

For ISVs, this means no more manual throttling, no guessing when to send, and no paying for messages that shouldn’t have gone out in the first place.

Because even when time changes, Telgorithm keeps your messaging right on schedule.

Learn more about Telgorithm’s unique SMS API product features for 10DLC messaging.