Field notes on calendar sync — why it breaks, and how to keep it reliable.
August 9, 2026 · 6 min read
An alert fired for a sync pair that was perfectly healthy. Muting it would have taken a minute. Chasing it found a bug that had been quietly misinforming customers for as long as the feature existed.
August 5, 2026 · 5 min read
A sync tool lost one of my events and told me nothing. Every answer I got about why came down to the same shrug: the provider dropped it. Here's why that isn't an answer, and what I built instead.
July 7, 2026 · 6 min read
You need your work calendar to show you're busy Thursday at 3pm. You don't need it to say why. How to block time across calendars while keeping the details private — free options included.
June 30, 2026 · 5 min read
Two-way sync was quietly doing two different jobs — keeping calendars identical, and keeping them privately aware of each other. Today we split it into two modes so you pick the intent, not a pile of settings. Here's what each one does and when to reach for it.
June 23, 2026 · 6 min read
Two-way sync mirrors edits and deletions in both directions, so either calendar can be the one you change. Here's exactly what propagates, what twocal owns, and how it settles a tug-of-war when both sides change at once.
June 22, 2026 · 6 min read
Sharing a Google calendar shows you an overlay — it doesn't block your time, and other people's scheduling tools can't see it. Here's the difference, and every real way to sync two Google accounts.
June 15, 2026 · 5 min read
Subscribed (ICS) calendars in Google refresh on Google's schedule, not yours — often 12 to 24 hours, with no refresh button. Here's how the mechanism works, why it can't be forced, and what updates instantly instead.
June 10, 2026 · 7 min read
Most advice for a broken Outlook–Google sync is 'check your internet connection.' Here are the actual root causes — including the ones you can't fix — from people who build sync for a living.
June 5, 2026 · 6 min read
Dropped calendar events are the most damaging sync failure because they leave no trace. Here are the six reasons Google–Outlook sync silently loses events — and what it takes to stop it.