My app runs on Linux servers, where the time (naturally) set to UTC/GMT. However the app is developed on Mac desktops where the time is typically set to a local timezone.
You can use TZ configuration parameter of node.js as follows.
TZ
For bash (and related)
export TZ=UTC
For Powershell
$env:TC = 'UTC'
Then for both:
nodejs server/index.js