toLocaleString call in timezone throws error "Invalid date" on IE11

I was trying ot use dayjs in IE11 with this polyfill https://www.npmjs.com/package/date-time-format-timezone and I got an error on this line:
https://github.com/iamkun/dayjs/blob/9c20e77caf7b1b5eccf418175203b198d4e29535/src/plugin/timezone/index.js#L98

trying it out in the browser console:

The polyfill it does seem to work fine-

Without the polyfill dayjs timezone can never work correctly.
Maybe it would be a good idea to add some spec or remove this
because this just creates false impression that you can use dayjs on IE without any issues.

Maybe with this polyfill: https://formatjs.io/docs/polyfills/intl-datetimeformat

It would work better, but it doesn bundle correctly with Vite, so I cannot try that out.

Read src/plugin/timezone/index.js at the reported line and reproduce the Invalid date error in IE11 with the date-time-format-timezone polyfill. Compare the browser-console behavior with the polyfill examples; done means reaching a maintainer-confirmed resolution for IE11 support, such as a tested compatibility change or clear documentation of the limitation.

Written by the indexing model from the issue text.