# How Newsletters Use Time-Based Personalization to Boost Open Rates

Page: https://stenobird.com/podcast/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729/how-newsletters-use-time-based-personalization-to-boost-open-rates
Text version: https://stenobird.com/podcast/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729/how-newsletters-use-time-based-personalization-to-boost-open-rates.md
Podcast: [The Newsletter Podcast with Fexingo: Substack, Beehiiv, and Email Newsletter Business](https://stenobird.com/podcast/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729)
Published: 2026-06-29T18:55:54+00:00
Episode link: https://audio.fexingo.com/business/the-newsletter-podcast/episode-0082.mp3
Audio file: https://audio.fexingo.com/business/the-newsletter-podcast/episode-0082.mp3
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729/episodes/how-newsletters-use-time-based-personalization-to-boost-open-rates
Duration seconds: 692

## Resource

Episode 82 explores a tactic few newsletter operators use: time-based personalization. Lucas and Luna break down how sending emails at the exact moment a subscriber is most likely to read — based on their past open behavior — can lift open rates by 20-40 percent. They discuss real examples from a study of 50 million emails by email platform MailerLite, showing how segmenting by timezone alone is outdated; the real gains come from per-subscriber send-time optimization. The hosts also cover how Beehiiv and Substack handle this feature, and why most creators ignore it. Practical, data-backed advice for newsletter operators who want to stand out in crowded inboxes. #TimeBasedPersonalization #NewsletterGrowth #EmailMarketing #OpenRates #MailerLite #Beehiiv #Substack #SendTimeOptimization #SubscriberEngagement #MarketingPodcast #FexingoBusiness #BusinessPodcast #LucasAndLuna #EmailDeliverability #DataDriven #Segmentation #CreatorEconomy #NewsletterTips Keep every episode free: buymeacoffee.com/fexingo

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729/episodes/how-newsletters-use-time-based-personalization-to-boost-open-rates/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/the-newsletter-podcast-with-fexingo-substack-beehiiv-and-email-newsletter-business-7871729/how-newsletters-use-time-based-personalization-to-boost-open-rates.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.