date picker multiple GMT issue

[qxygene1]

https://play.vuetifyjs.com/#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

Multiple is showing wrong date something like T21:00:00.000Z

[KaelWD]

They're both Date objects, the difference is just vue's toDisplayString calling String(Date) vs JSON.stringify([Date])