diff --git a/src/components/ChallengeEditor/index.js b/src/components/ChallengeEditor/index.js
index bb239e14..921a5d86 100644
--- a/src/components/ChallengeEditor/index.js
+++ b/src/components/ChallengeEditor/index.js
@@ -1251,7 +1251,7 @@ class ChallengeEditor extends Component {
     if (phase.name !== 'Registration') {
       return false
     }
-    return moment(phase.scheduledEndDate).isAfter(moment())
+    return !phase.isOpen
   }
 
   render () {
diff --git a/src/components/PhaseInput/index.js b/src/components/PhaseInput/index.js
index e12cf34a..18ad1a9f 100644
--- a/src/components/PhaseInput/index.js
+++ b/src/components/PhaseInput/index.js
@@ -59,18 +59,6 @@ const PhaseInput = ({ onUpdatePhase, phase, readOnly, phaseIndex, isActive }) =>
     setDuration(moment(end).diff(start, 'hours'))
   }
 
-  const onEndDateChange = (e) => {
-    const end = moment(e).format()
-    const start = moment(startDate).format()
-
-    if (moment(end).isBefore(moment(start))) {
-      return null
-    }
-
-    setEndDate(moment(e).format(dateFormat))
-    setDuration(moment(end).diff(start, 'hours'))
-  }
-
   const onDurationChange = (e) => {
     if (e.length > MAX_LENGTH) return null
 
@@ -90,7 +78,7 @@ const PhaseInput = ({ onUpdatePhase, phase, readOnly, phaseIndex, isActive }) =>
           <span className={styles.title}>Start Date:</span>
           <div className={styles.dayPicker}>
             {
-              readOnly ? (
+              readOnly || !isActive ? (
                 <span className={styles.readOnlyValue}>{moment(startDate).format(dateFormat)}</span>
               )
                 : (
@@ -102,7 +90,6 @@ const PhaseInput = ({ onUpdatePhase, phase, readOnly, phaseIndex, isActive }) =>
                       const yesterday = subDays(new Date(), 1)
                       return isAfter(current, yesterday)
                     }}
-                    disabled={!isActive}
                     dateFormat={inputDateFormat}
                     timeFormat={inputTimeFormat}
                   />)}
@@ -111,22 +98,7 @@ const PhaseInput = ({ onUpdatePhase, phase, readOnly, phaseIndex, isActive }) =>
         <div className={cn(styles.field, styles.col2)}>
           <span className={styles.title}>End Date:</span>
           <div className={styles.dayPicker}>
-            {
-              readOnly ? (
-                <span className={styles.readOnlyValue}>{moment(endDate).format(dateFormat)}</span>
-              )
-                : (
-                  <DateTime
-                    className={styles.dateTimeInput}
-                    value={moment(endDate).format(dateFormat)}
-                    onChange={onEndDateChange}
-                    isValidDate={(current) => {
-                      return isAfter(current, new Date(startDate))
-                    }}
-                    disabled={!isActive}
-                    dateFormat={inputDateFormat}
-                    timeFormat={inputTimeFormat}
-                  />)}
+            <span className={styles.readOnlyValue}>{moment(endDate).format(dateFormat)}</span>
           </div>
         </div>
         <div className={cn(styles.field, styles.col2)}>
diff --git a/src/util/date.js b/src/util/date.js
index b0bad1ad..32e2733c 100644
--- a/src/util/date.js
+++ b/src/util/date.js
@@ -109,7 +109,7 @@ export const updateChallengePhaseBeforeSendRequest = (challengeDetail) => {
   const hourToSecond = 60 * 60
   if (challengeDetail.phases) {
     const challengeDetailTmp = _.cloneDeep(challengeDetail)
-    challengeDetailTmp.startDate = challengeDetail.phases[0].scheduledStartDate
+    challengeDetailTmp.startDate = moment(challengeDetail.phases[0].scheduledStartDate)
     // challengeDetailTmp.registrationStartDate = moment(challengeDetail.phases[0].scheduledStartDate)
     // challengeDetailTmp.registrationEndDate = moment(challengeDetail.phases[0].scheduledEndDate)
     // challengeDetailTmp.submissionStartDate = moment(challengeDetail.phases[1].scheduledStartDate)