Irregular Hours newsletter sponsorships

NewsletterFIT detected Irregular Hours sponsoring 1 newsletter in 1 post over the last 12 months, first on Oct 19, 2026. Newsletters it has sponsored include Reading the City . The most recent placement was in Reading the City on Oct 19, 2026. Its placements cluster around Book launches, Literary events and Author interviews.

Watch Irregular Hours
Newsletters
1
sponsored in the last 12 months
Placements
1
posts with a detected sponsorship
First detected
Oct 19, 2026
in indexed posts
Last seen
Oct 19, 2026
Reading the City

Placements per month

2025-112026-10

Newsletters Irregular Hours has sponsored

  1. Reading the City 3K subscribers

    SubstackEvery two weeks · last post 32 days ago

    Likely audience: Book lovers

    1 placement · last Oct 19

Similar newsletters where Irregular Hours hasn't been detected

Active newsletters on the same topics that already carry sponsors. Useful for finding where a brand like this could go next, or where a competitor isn't yet.

  • SubstackWeekly · last post 16 days ago

    Likely audience: writers

    Sponsored by Alpha School

  • SubstackMonthly or less · last post 58 days ago

    Likely audience: Community organizers

    Sponsored by Abortion

  • People & Food12K subscribers

    SubstackEvery two weeks · last post 24 days ago

    Likely audience: Food enthusiasts

    Sponsored by Fruit Riot

Recent placements

  • 146. Reading…Reading the City

    “xter the Angel, Celebrity Book Club co-host Lily Marotta, New Waves author Kevin Nguyen, and Substack's deputy editor . Sponsored by Irregul”

Detected automatically from posts with explicit sponsorship markers ("sponsored by", "brought to you by" and similar). Detection can miss placements or misread them. Updated Oct 31, 2026 · methodology · all sponsors