You might be interested in these PCFs
Timezone Converter Control
A control that allows users to select a local datetime and a city to view the corresponding time.
Timezone Display
A control to display a Dataverse DateTime field across multiple timezones on a model-driven form.
Month Picker Control
Month Picker is a simple control that allows the user to pick a month of the year.
Extended Date Picker
A control to replicate Date Picker with Office Fabric UI with some extended features.

