Fix differences in duration

[laurakwhit]

Description & motivation 💭

The toSeconds util uses intervalToDuration which is expecting an interval object (consisting of two Dates) to be passed as the parameter and therefore it utilizes the Date constructor. new Date() creates a datetime in the client timezone which was causing differences in duration (e.g. timer duration ⬇️ )

for different users based on what their system timezone was set to.

This PR passes two Dates based on UTC instead of relying on the client timezone in instances where intervalToDuration is being determined based on seconds.

Screenshots (if applicable) 📸

Design Considerations 🎨

Testing 🧪

If system settings are set to PDT

intervalToDuration({ start: 0, end: (2652361 * 1000) })

will return { months: 1, hours: 7, minutes: 853, seconds: 102419 } and

intervalToDuration({ start: new Date(Date.UTC(0, 0, 0, 0, 0, 0)), end: new Date(Date.UTC(0, 0, 0, 0, 0, 2652361))})

will return { days: 30, hours: 16, minutes: 46, seconds: 1 }

How was this tested 👻

• Manual testing
• E2E tests added
• Unit tests added

Steps for others to test: 🚶🏽‍♂️🚶🏽‍♀️

Checklists

Draft Checklist

Merge Checklist

Issue(s) closed

DT-2484

Docs

Any docs updates needed?

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Name	Status	Preview	Comments	Updated (UTC)
holocene	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 26, 2024 9:44pm

[Alex-Tideman]

Incredible detective work!