diff --git a/public/app/plugins/datasource/elasticsearch/partials/config.html b/public/app/plugins/datasource/elasticsearch/partials/config.html
index 9085dfa5d4a..6fd773fed49 100644
--- a/public/app/plugins/datasource/elasticsearch/partials/config.html
+++ b/public/app/plugins/datasource/elasticsearch/partials/config.html
@@ -36,7 +36,14 @@
 	<div class="gf-form-inline">
 		<div class="gf-form">
 			<span class="gf-form-label width-9">Min time interval</span>
-			<input type="text" class="gf-form-input width-6 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="10s"></input>
+			<input
+        type="text"
+        class="gf-form-input width-6 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.timeInterval"
+        spellcheck='false'
+        placeholder="10s"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
 			<info-popover mode="right-absolute">
 				A lower limit for the auto group by time interval. Recommended to be set to write frequency,
 				for example <code>1m</code> if your data is written every minute.
diff --git a/public/app/plugins/datasource/mssql/partials/config.html b/public/app/plugins/datasource/mssql/partials/config.html
index 6428b45dfe4..f8034e86b1c 100644
--- a/public/app/plugins/datasource/mssql/partials/config.html
+++ b/public/app/plugins/datasource/mssql/partials/config.html
@@ -82,7 +82,14 @@
 	<div class="gf-form-inline">
 		<div class="gf-form">
 			<span class="gf-form-label width-9">Min time interval</span>
-			<input type="text" class="gf-form-input width-6 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="1m"></input>
+			<input
+        type="text"
+        class="gf-form-input width-6 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.timeInterval"
+        spellcheck='false'
+        placeholder="1m"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
 			<info-popover mode="right-absolute">
 				A lower limit for the auto group by time interval. Recommended to be set to write frequency,
 				for example <code>1m</code> if your data is written every minute.
diff --git a/public/app/plugins/datasource/mysql/partials/config.html b/public/app/plugins/datasource/mysql/partials/config.html
index 4ec8101a227..b754a5ab9a1 100644
--- a/public/app/plugins/datasource/mysql/partials/config.html
+++ b/public/app/plugins/datasource/mysql/partials/config.html
@@ -82,7 +82,14 @@
 	<div class="gf-form-inline">
 		<div class="gf-form">
 			<span class="gf-form-label width-9">Min time interval</span>
-			<input type="text" class="gf-form-input width-6 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="1m"></input>
+			<input
+        type="text"
+        class="gf-form-input width-6 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.timeInterval"
+        spellcheck='false'
+        placeholder="1m"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
 			<info-popover mode="right-absolute">
 				A lower limit for the auto group by time interval. Recommended to be set to write frequency,
 				for example <code>1m</code> if your data is written every minute.
diff --git a/public/app/plugins/datasource/postgres/partials/config.html b/public/app/plugins/datasource/postgres/partials/config.html
index e7680707672..95abc25dee7 100644
--- a/public/app/plugins/datasource/postgres/partials/config.html
+++ b/public/app/plugins/datasource/postgres/partials/config.html
@@ -96,7 +96,14 @@
 	<div class="gf-form-inline">
 		<div class="gf-form">
 			<span class="gf-form-label width-9">Min time interval</span>
-			<input type="text" class="gf-form-input width-6 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="1m"></input>
+			<input
+        type="text"
+        class="gf-form-input width-6 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.timeInterval"
+        spellcheck='false'
+        placeholder="1m"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
 			<info-popover mode="right-absolute">
 				A lower limit for the auto group by time interval. Recommended to be set to write frequency,
 				for example <code>1m</code> if your data is written every minute.
diff --git a/public/app/plugins/datasource/prometheus/partials/config.html b/public/app/plugins/datasource/prometheus/partials/config.html
index aaeec7f5336..c0ee73719fe 100644
--- a/public/app/plugins/datasource/prometheus/partials/config.html
+++ b/public/app/plugins/datasource/prometheus/partials/config.html
@@ -5,7 +5,14 @@
   <div class="gf-form-inline">
     <div class="gf-form">
       <span class="gf-form-label width-8">Scrape interval</span>
-      <input type="text" class="gf-form-input width-8 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="15s"></input>
+      <input
+        type="text"
+        class="gf-form-input width-8 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.timeInterval"
+        spellcheck='false'
+        placeholder="15s"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
       <info-popover mode="right-absolute">
         Set this to your global scrape interval defined in your Prometheus config file. This will be used as a lower limit for the
         Prometheus step query parameter.
@@ -16,7 +23,14 @@
   <div class="gf-form-inline">
     <div class="gf-form">
       <span class="gf-form-label width-8">Query timeout</span>
-      <input type="text" class="gf-form-input width-8 gf-form-input--has-help-icon" ng-model="ctrl.current.jsonData.queryTimeout" spellcheck='false' placeholder="60s"></input>
+      <input
+        type="text"
+        class="gf-form-input width-8 gf-form-input--has-help-icon"
+        ng-model="ctrl.current.jsonData.queryTimeout"
+        spellcheck="false"
+        placeholder="60s"
+        ng-pattern="/^\d+[Mwdhmsy]$/"
+      ></input>
       <info-popover mode="right-absolute">
         Set the Prometheus query timeout.
       </info-popover>