diff --git a/xml/schema/Core/Cache.xml b/xml/schema/Core/Cache.xml
index de80e3da7d8e..29445f1aa986 100644
--- a/xml/schema/Core/Cache.xml
+++ b/xml/schema/Core/Cache.xml
@@ -75,13 +75,16 @@
   </foreignKey>
   <field>
     <name>created_date</name>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <comment>When was the cache item created</comment>
     <add>2.1</add>
   </field>
   <field>
     <name>expired_date</name>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <comment>When should the cache item expire</comment>
     <add>2.1</add>
   </field>
diff --git a/xml/schema/Core/Job.xml b/xml/schema/Core/Job.xml
index bc011d4d2b9b..45429a4afff9 100644
--- a/xml/schema/Core/Job.xml
+++ b/xml/schema/Core/Job.xml
@@ -55,8 +55,9 @@
   </field>
   <field>
     <name>last_run</name>
-    <type>datetime</type>
+    <type>timestamp</type>
     <default>NULL</default>
+    <required>false</required>
     <comment>When was this cron entry last run</comment>
     <add>4.1</add>
   </field>
diff --git a/xml/schema/Mailing/Event/Bounce.xml b/xml/schema/Mailing/Event/Bounce.xml
index a76feedbe91d..c2b6aa40e4d0 100644
--- a/xml/schema/Mailing/Event/Bounce.xml
+++ b/xml/schema/Mailing/Event/Bounce.xml
@@ -53,7 +53,8 @@
   <field>
     <name>time_stamp</name>
     <title>Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this bounce event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Confirm.xml b/xml/schema/Mailing/Event/Confirm.xml
index 0dc679c0b0df..338b06eebb43 100644
--- a/xml/schema/Mailing/Event/Confirm.xml
+++ b/xml/schema/Mailing/Event/Confirm.xml
@@ -32,7 +32,8 @@
   <field>
     <name>time_stamp</name>
     <title>Confirm Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this confirmation event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Delivered.xml b/xml/schema/Mailing/Event/Delivered.xml
index 46ddba2eec46..a38b0c5b773e 100644
--- a/xml/schema/Mailing/Event/Delivered.xml
+++ b/xml/schema/Mailing/Event/Delivered.xml
@@ -32,7 +32,8 @@
   <field>
     <name>time_stamp</name>
     <title>Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this delivery event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Forward.xml b/xml/schema/Mailing/Event/Forward.xml
index 4fe391110df2..442d8c8b95a8 100644
--- a/xml/schema/Mailing/Event/Forward.xml
+++ b/xml/schema/Mailing/Event/Forward.xml
@@ -44,7 +44,8 @@
   <field>
     <name>time_stamp</name>
     <title>Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this forward event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Opened.xml b/xml/schema/Mailing/Event/Opened.xml
index 2d69ef13f254..814fcb365f8f 100644
--- a/xml/schema/Mailing/Event/Opened.xml
+++ b/xml/schema/Mailing/Event/Opened.xml
@@ -32,7 +32,8 @@
   <field>
     <name>time_stamp</name>
     <title>Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this open event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Reply.xml b/xml/schema/Mailing/Event/Reply.xml
index a6020e186dbf..d4084592e965 100644
--- a/xml/schema/Mailing/Event/Reply.xml
+++ b/xml/schema/Mailing/Event/Reply.xml
@@ -32,7 +32,8 @@
   <field>
     <name>time_stamp</name>
     <title>Reply Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this reply event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Subscribe.xml b/xml/schema/Mailing/Event/Subscribe.xml
index e281de844326..67f50439efbe 100644
--- a/xml/schema/Mailing/Event/Subscribe.xml
+++ b/xml/schema/Mailing/Event/Subscribe.xml
@@ -61,7 +61,8 @@
   <field>
     <name>time_stamp</name>
     <title>Mailing Subscribe Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this subscription event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/TrackableURLOpen.xml b/xml/schema/Mailing/Event/TrackableURLOpen.xml
index 17f0e0e95b5c..fd1150f46344 100644
--- a/xml/schema/Mailing/Event/TrackableURLOpen.xml
+++ b/xml/schema/Mailing/Event/TrackableURLOpen.xml
@@ -45,7 +45,8 @@
   <field>
     <name>time_stamp</name>
     <title>Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this trackable URL open occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Event/Unsubscribe.xml b/xml/schema/Mailing/Event/Unsubscribe.xml
index 3504bf8c8142..1dde5f098612 100644
--- a/xml/schema/Mailing/Event/Unsubscribe.xml
+++ b/xml/schema/Mailing/Event/Unsubscribe.xml
@@ -39,7 +39,8 @@
   <field>
     <name>time_stamp</name>
     <title>Unsubscribe Timestamp</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
     <required>true</required>
     <comment>When this delivery event occurred.</comment>
   </field>
diff --git a/xml/schema/Mailing/Mailing.xml b/xml/schema/Mailing/Mailing.xml
index 20a0fe6bf49e..25d2488079bc 100644
--- a/xml/schema/Mailing/Mailing.xml
+++ b/xml/schema/Mailing/Mailing.xml
@@ -271,12 +271,15 @@
   </foreignKey>
   <field>
     <name>created_date</name>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>CURRENT_TIMESTAMP</default>
+    <required>false</required>
     <title>Mailing Created Date</title>
     <comment>Date and time this mailing was created.</comment>
     <add>3.0</add>
     <html>
       <type>Select Date</type>
+      <formatType>activityDateTime</formatType>
     </html>
   </field>
   <field>
@@ -293,10 +296,16 @@
   </foreignKey>
   <field>
     <name>scheduled_date</name>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <title>Mailing Scheduled Date</title>
     <comment>Date and time this mailing was scheduled.</comment>
     <add>3.3</add>
+    <html>
+      <type>Select Date</type>
+      <formatType>activityDateTime</formatType>
+    </html>
   </field>
   <field>
     <name>approver_id</name>
@@ -312,10 +321,16 @@
   </foreignKey>
   <field>
     <name>approval_date</name>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <title>Mailing Approved Date</title>
     <comment>Date and time this mailing was approved.</comment>
     <add>3.3</add>
+    <html>
+      <type>Select Date</type>
+      <formatType>activityDateTime</formatType>
+    </html>
   </field>
   <field>
     <name>approval_status_id</name>
diff --git a/xml/schema/Mailing/MailingAB.xml b/xml/schema/Mailing/MailingAB.xml
index 8256aea13535..8bacee1aa718 100644
--- a/xml/schema/Mailing/MailingAB.xml
+++ b/xml/schema/Mailing/MailingAB.xml
@@ -121,7 +121,9 @@
   <field>
     <name>created_date</name>
     <title>AB Test Created Date</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <required>false</required>
+    <default>CURRENT_TIMESTAMP</default>
     <comment>When was this item created</comment>
     <add>4.6</add>
     <html>
diff --git a/xml/schema/Mailing/MailingJob.xml b/xml/schema/Mailing/MailingJob.xml
index 31063ec17b9b..07319d16c481 100644
--- a/xml/schema/Mailing/MailingJob.xml
+++ b/xml/schema/Mailing/MailingJob.xml
@@ -32,19 +32,25 @@
   <field>
     <name>scheduled_date</name>
     <title>Mailing Scheduled Date</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <comment>date on which this job was scheduled.</comment>
   </field>
   <field>
     <name>start_date</name>
     <title>Mailing Job Start Date</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <comment>date on which this job was started.</comment>
   </field>
   <field>
     <name>end_date</name>
     <title>Mailing Job End Date</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <default>NULL</default>
+    <required>false</required>
     <comment>date on which this job ended.</comment>
   </field>
   <field>
diff --git a/xml/schema/Mailing/Spool.xml b/xml/schema/Mailing/Spool.xml
index b7c82ba63212..a3f26cf950e6 100644
--- a/xml/schema/Mailing/Spool.xml
+++ b/xml/schema/Mailing/Spool.xml
@@ -49,13 +49,17 @@
   <field>
     <name>added_at</name>
     <title>Added</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <required>false</required>
+    <default>NULL</default>
     <comment>date on which this job was added.</comment>
   </field>
   <field>
     <name>removed_at</name>
     <title>Removed</title>
-    <type>datetime</type>
+    <type>timestamp</type>
+    <required>false</required>
+    <default>NULL</default>
     <comment>date on which this job was removed.</comment>
   </field>
 </table>