How to change Mat-Datepicker date format to DD/MM/YYYY in simplest way?

Question

I\'m setting up a mat-datepicker for DOB and traditionally the display format is MM/DD/YYYY,I need to change it to DD/MM/YYYY with less coding

I tried format tag in mat

Answer 1

use dateadapter from core

import { DateAdapter } from '@angular/material/core';

constructor(private dateAdapter: DateAdapter<Date>) {
    this.dateAdapter.setLocale('en-GB'); //dd/MM/yyyy

}

`

Answer 2

First, bind the format to your mat-datepicker.

export const MY_FORMATS = {
    parse: {
        dateInput: 'LL'
    },
    display: {
        dateInput: 'YYYY-MM-DD',
        monthYearLabel: 'YYYY',
        dateA11yLabel: 'LL',
        monthYearA11yLabel: 'YYYY'
    }
};

along with this you need to import and provide the modules.

import { DateAdapter, MAT_DATE_FORMATS, MAT_DATE_LOCALE } from '@angular/material';
import { MomentDateModule, MomentDateAdapter } from '@angular/material-moment-adapter';

{ provide: DateAdapter, useClass: MomentDateAdapter, deps: [MAT_DATE_LOCALE] },
{ provide: MAT_DATE_FORMATS, useValue: MY_FORMATS }

And in HTML follow this simply.

<mat-form-field>
    <input
        matInput
        [matDatepicker]="dp"
        placeholder="Verbose datepicker
        [formControl]="date"
    >
    <mat-datepicker-toggle matSuffix [for]="dp"></mat-datepicker-toggle>
    <mat-datepicker #dp></mat-datepicker>
</mat-form-field>

Answer 3

Try this in the component you are using mat-datepicker

import { DateAdapter } from '@angular/material';

constructor(private dateAdapter: DateAdapter<Date>) {
    this.dateAdapter.setLocale('your locale'); 
}

Answer 4

If you want to change the MaterialDatePicker date format into yyyy-mm-dd then use the below code. This code is working for me.

MaterialDatePicker<Long> materialDatePicker=materialDateBuilder.build();
materialDatePicker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener<Long>() {
    @Override
    public void onPositiveButtonClick(Long selection) {
        // Get the offset from our timezone and UTC.
        TimeZone timeZoneUTC = TimeZone.getDefault();
        // It will be negative, so that's the -1
        int offsetFromUTC = timeZoneUTC.getOffset(new Date().getTime()) * -1;
        // Create a date format, then a date object with our offset
        SimpleDateFormat simpleFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
        Date date = new Date(selection + offsetFromUTC);

        mEt_last_date_to_apply.setText(simpleFormat.format(date));
    }
});

mEt_last_date_to_apply is my EditText

Answer 5

I got it working after combining some knowledge from various answers here, so I thought I'd consolidate what worked for me.

Angular 10:

In your module, import MAT_DATE_LOCALE and add it to providers:

import { MAT_DATE_LOCALE } from '@angular/material/core'

@NgModule({
  declarations: [...],
  imports: [...],
  exports: [...],
  providers: [
    { provide: MAT_DATE_LOCALE, useValue: 'en-GB' }
  ]
})

If you use a shared module to import material this will change all the formats of your datepickers across the site.

Answer 6

formatDate(Date(), "yyyy-MM-dd", 'en-GB')