Carlos Cifuentes
AngularJS library migration · date and time pickers

Migrating angular-bootstrap-datetimepicker / ui-date to modern Angular

angular-bootstrap-datetimepicker offered a combined date and time picker for Bootstrap, and ui-date wrapped the jQuery UI datepicker. Both are tied to AngularJS.

What replaces it

OptionWhen to choose it
Angular Material datepicker and timepickerMaintained by the Angular team (the timepicker exists from Angular Material 19); works with native Date or with a date adapter such as date-fns or Luxon.
ng-bootstrap datepicker and timepickerWhen the app keeps its Bootstrap styling.
Native date and datetime-local inputsEnough for simple forms, with the platform's own picker on mobile.

How to migrate it

  1. Check what each field stores (a Date, an ISO string, a timestamp or a Moment object) and what the API expects.
  2. Build shared date and date-time field components over the chosen picker, with one display format and one locale.
  3. Replace the fields together with their screen, and remove jQuery UI or Moment when the last old picker is gone.

Watch out. Date-only values are the classic bug: converting a local midnight Date with toISOString can shift it to the previous day. Send date-only fields as yyyy-MM-dd strings.

Other libraries

Planning a migration or a micro-frontend platform?

In a 20-minute call you describe your situation and I tell you how I'd approach it. If it isn't worth doing yet, I'll say so.

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