diff --git a/modules/backend/formwidgets/DatePicker.php b/modules/backend/formwidgets/DatePicker.php
index 70980753a..8c8824e61 100644
--- a/modules/backend/formwidgets/DatePicker.php
+++ b/modules/backend/formwidgets/DatePicker.php
@@ -31,13 +31,15 @@ class DatePicker extends FormWidgetBase
 
     /**
      * @var string the minimum/earliest date that can be selected.
+     * eg: 2000-01-01
      */
-    public $minDate = '2000-01-01';
+    public $minDate = null;
 
     /**
      * @var string the maximum/latest date that can be selected.
+     * eg: 2020-12-31
      */
-    public $maxDate = '2020-12-31';
+    public $maxDate = null;
 
     //
     // Object properties
@@ -62,13 +64,17 @@ class DatePicker extends FormWidgetBase
 
         $this->mode = strtolower($this->mode);
 
-        $this->minDate = is_integer($this->minDate)
-            ? Carbon::createFromTimestamp($this->minDate)
-            : Carbon::parse($this->minDate);
+        if ($this->minDate !== null) {
+            $this->minDate = is_integer($this->minDate)
+                ? Carbon::createFromTimestamp($this->minDate)
+                : Carbon::parse($this->minDate);
+        }
 
-        $this->maxDate = is_integer($this->maxDate)
-            ? Carbon::createFromTimestamp($this->maxDate)
-            : Carbon::parse($this->maxDate);
+        if ($this->maxDate !== null) {
+            $this->maxDate = is_integer($this->maxDate)
+                ? Carbon::createFromTimestamp($this->maxDate)
+                : Carbon::parse($this->maxDate);
+        }
     }
 
     /**
diff --git a/modules/backend/formwidgets/datepicker/assets/js/build-min.js b/modules/backend/formwidgets/datepicker/assets/js/build-min.js
index 5d35cab4e..7878512df 100644
--- a/modules/backend/formwidgets/datepicker/assets/js/build-min.js
+++ b/modules/backend/formwidgets/datepicker/assets/js/build-min.js
@@ -386,11 +386,14 @@ this.$input=this.$el.find('input:first')
 var $form=this.$el.closest('form'),changeMonitor=$form.data('oc.changeMonitor')
 if(changeMonitor!==undefined)
 changeMonitor.pause()
-this.$input.pikaday({minDate:new Date(options.minDate),maxDate:new Date(options.maxDate),yearRange:options.yearRange,setDefaultDate:moment(this.$input.val()).toDate(),i18n:$.oc.lang.get('datepicker'),onOpen:function(){var $field=$(this._o.trigger)
-$(this.el).css({left:'auto',right:$(window).width()-$field.offset().left-$field.outerWidth()})}})
+var pikadayOptions={yearRange:options.yearRange,format:options.format,setDefaultDate:moment(this.$input.val()).toDate(),i18n:$.oc.lang.get('datepicker'),onOpen:function(){var $field=$(this._o.trigger)
+$(this.el).css({left:'auto',right:$(window).width()-$field.offset().left-$field.outerWidth()})}}
+if(options.minDate){pikadayOptions.minDate=new Date(options.minDate)}
+if(options.maxDate){pikadayOptions.maxDate=new Date(options.maxDate)}
+this.$input.pikaday(pikadayOptions)
 if(changeMonitor!==undefined)
 changeMonitor.resume()}
-DatePicker.DEFAULTS={minDate:'2000-01-01',maxDate:'2020-12-31',yearRange:10}
+DatePicker.DEFAULTS={minDate:null,maxDate:null,format:'YYYY-MM-DD',yearRange:10}
 var old=$.fn.datePicker
 $.fn.datePicker=function(option){var args=Array.prototype.slice.call(arguments,1)
 return this.each(function(){var $this=$(this)
diff --git a/modules/backend/formwidgets/datepicker/assets/js/datepicker.js b/modules/backend/formwidgets/datepicker/assets/js/datepicker.js
index 4938552aa..823ce4cef 100644
--- a/modules/backend/formwidgets/datepicker/assets/js/datepicker.js
+++ b/modules/backend/formwidgets/datepicker/assets/js/datepicker.js
@@ -35,9 +35,7 @@
         if (changeMonitor !== undefined)
             changeMonitor.pause()
 
-        this.$input.pikaday({
-            minDate: new Date(options.minDate),
-            maxDate: new Date(options.maxDate),
+        var pikadayOptions = {
             yearRange: options.yearRange,
             format: options.format,
             setDefaultDate: moment(this.$input.val()).toDate(),
@@ -50,15 +48,25 @@
                     right: $(window).width() - $field.offset().left - $field.outerWidth()
                 })
             }
-        })
+        }
+
+        if (options.minDate) {
+            pikadayOptions.minDate = new Date(options.minDate)
+        }
+
+        if (options.maxDate) {
+            pikadayOptions.maxDate = new Date(options.maxDate)
+        }
+
+        this.$input.pikaday(pikadayOptions)
 
         if (changeMonitor !== undefined)
             changeMonitor.resume()
     }
 
     DatePicker.DEFAULTS = {
-        minDate: '2000-01-01',
-        maxDate: '2020-12-31',
+        minDate: null,
+        maxDate: null,
         format: 'YYYY-MM-DD',
         yearRange: 10
     }
diff --git a/modules/backend/formwidgets/datepicker/partials/_datepicker.htm b/modules/backend/formwidgets/datepicker/partials/_datepicker.htm
index 171caf2dd..81f2d1128 100644
--- a/modules/backend/formwidgets/datepicker/partials/_datepicker.htm
+++ b/modules/backend/formwidgets/datepicker/partials/_datepicker.htm
@@ -9,8 +9,9 @@
             class="field-datepicker"
             data-control="datepicker"
             data-format="<?= $format ?>"
-            data-min-date="<?= $minDate ?>"
-            data-max-date="<?= $maxDate ?>">
+            <?php if ($minDate): ?>data-min-date="<?= $minDate ?>"<?php endif ?>
+            <?php if ($maxDate): ?>data-max-date="<?= $maxDate ?>"<?php endif ?>
+            >
             <div class="input-with-icon right-align">
                 <i class="icon icon-calendar-o"></i>
                 <input
@@ -34,8 +35,9 @@
                     class="field-datepicker"
                     data-control="datepicker"
                     data-format="<?= $format ?>"
-                    data-min-date="<?= $minDate ?>"
-                    data-max-date="<?= $maxDate ?>">
+                    <?php if ($minDate): ?>data-min-date="<?= $minDate ?>"<?php endif ?>
+                    <?php if ($maxDate): ?>data-max-date="<?= $maxDate ?>"<?php endif ?>
+                    >
                     <div class="input-with-icon right-align">
                         <i class="icon icon-calendar-o"></i>
                         <input