Observed arrival · 2026-11-13
A calendar overlap tool for cross-border workdays
Both Countries Open compares working days between two countries, accounting for holidays, and offers CSV or ICS exports.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Teams coordinating work across national holidays
- Worth noticing
- The listed coverage includes US, UK nations, India, and German states for 2026 and 2027, with CSV and ICS export options.
Field notes
The homepage separates the overlap view from a reasons view, which can show why one calendar is closed on a date. It also describes a worked guide example written in HTML so readers can inspect its inputs and result without running a script. The listed calendar coverage spans 2026 and 2027; the page says calculations stay in the browser.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
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