enlightens parent
I had a client (a national company with multiple locations and call centers!) that was using Lotus Notes for email in 2022, and for all I know they could still be using it. They had to run parallel calendars to work with external event invites, and apparently one of the calendars was backed by a system with a clock that was 5 minutes off because everyone was always getting to virtual meetings at the wrong time.
That sounds both wholesome and horrifying. Like we are well into the digital age but sometimes people are just stubbornly analog.