Free
The Calculate Business Days action with country holiday calendars.
How I built NetworkDays
I spent roughly three months turning a focused HubSpot workflow problem into a production app with real billing, deployment controls, observability, and 552 automated tests.
The product started with one precise job
NetworkDays is how you calculate business days in HubSpot: it skips weekends and public holidays, with support for more than 145 country holiday calendars. The product is deliberately focused on HubSpot business days calculation inside workflow actions, not a general-purpose scheduling tool.
Pro, $25/month
Add, subtract, check, and find next or previous business-day actions, plus company holidays.
Premium, $50/month
A CRM card and Velocity Reports that write deal and ticket business-day KPIs into native reportable HubSpot properties.
Product details and direct installation
Visit networkdays.io
Engineering discipline, not luck
552 automated tests. Two independent AI-model audits, cross-checking each other, caught real bugs before they reached a paying customer, including one that would have quietly downgraded every subscriber back to free about a month after signup. Every production deploy is gated on a database snapshot and a rollback tag, no exceptions. Billing went live only after being verified end to end, with monitoring in place before a real customer ever touched it.
See what NetworkDays does inside HubSpot
Review the workflow actions, country calendars, company holiday support, CRM card, and Velocity Reports on the product site.
Explore NetworkDays