diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMax.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMax.json
index b72de6f85cd4..db916c191717 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMax.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMax.json
@@ -25,7 +25,8 @@
         "collation": "SQL_Latin1_General_CP1_CI_AS",
         "dnsZonePartner": "/subscriptions/20D7082A-0FC7-4468-82BD-542694D5042B/resourceGroups/testrg/providers/Microsoft.Sql/managedInstances/testinstance",
         "publicDataEndpointEnabled" : false,
-        "proxyOverride" : "Redirect"
+        "proxyOverride" : "Redirect",
+        "timezoneId" : "UTC"
       }
     }
   },
@@ -52,7 +53,8 @@
           "collation": "SQL_Latin1_General_CP1_CI_AS",
           "dnsZone": "1b4e2caff2530",
           "publicDataEndpointEnabled" : false,
-          "proxyOverride" : "Redirect"
+          "proxyOverride" : "Redirect",
+          "timezoneId" : "UTC"
         }
       }
     },
@@ -76,7 +78,8 @@
           "subnetId" : "/subscriptions/20D7082A-0FC7-4468-82BD-542694D5042B/resourceGroups/testrg/providers/Microsoft.Network/virtualNetworks/vnet1/subnets/subnet1",
           "state": "Ready",
           "collation": "SQL_Latin1_General_CP1_CI_AS",
-          "dnsZone": "1b4e2caff2530"
+          "dnsZone": "1b4e2caff2530",
+          "timezoneId" : "UTC"
         }
       }
     },
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMin.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMin.json
index 3f0eab2475e4..c591ab4f88c5 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMin.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceCreateMin.json
@@ -29,7 +29,8 @@
           "administratorLogin": "dummylogin",
           "state": "Ready",
           "collation": "SQL_Latin1_General_CP1_CI_AS",
-          "dnsZone": "1b4e2caff2530"
+          "dnsZone": "1b4e2caff2530",
+          "timezoneId" : "UTC"
         }
       }
     },
@@ -49,7 +50,8 @@
           "administratorLogin": "dummylogin",
           "state": "Ready",
           "collation": "SQL_Latin1_General_CP1_CI_AS",
-          "dnsZone": "1b4e2caff2530"
+          "dnsZone": "1b4e2caff2530",
+          "timezoneId" : "UTC"
         }
       }
     },
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceGet.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceGet.json
index 7a178a87bd29..f7cad78f1997 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceGet.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceGet.json
@@ -24,7 +24,8 @@
           "collation":  "SQL_Latin1_General_CP1_CI_AS",
           "dnsZone": "1b4e2caff2530",
           "publicDataEndpointEnabled" : false,
-          "proxyOverride" : "Default"
+          "proxyOverride" : "Default",
+          "timezoneId" : "UTC"
         },
         "location" : "onebox",
         "id" : "/subscriptions/20d7082a-0fc7-4468-82bd-542694d5042b/resourceGroups/testrg/providers/Microsoft.Sql/managedInstances/testcl",
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceList.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceList.json
index 9f0dc18cae6c..05347a7764e4 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceList.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceList.json
@@ -26,7 +26,8 @@
               "collation":  "SQL_Latin1_General_CP1_CI_AS",
               "dnsZone": "1b4e2caff2530",
               "publicDataEndpointEnabled" : false,
-              "proxyOverride" : "Proxy"
+              "proxyOverride" : "Proxy",
+              "timezoneId" : "UTC"
             }
           }, {
             "location" : "onebox",
@@ -48,7 +49,8 @@
               "collation":  "SQL_Latin1_General_CP1_CI_AS",
               "dnsZone": "1b4e2caff2530",
               "publicDataEndpointEnabled" : false,
-              "proxyOverride" : ""
+              "proxyOverride" : "",
+              "timezoneId" : "UTC"
             }
           }
         ]
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceListByResourceGroup.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceListByResourceGroup.json
index 336a77eebe1b..acb6c8e722a1 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceListByResourceGroup.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceListByResourceGroup.json
@@ -28,7 +28,8 @@
                         "collation":  "SQL_Latin1_General_CP1_CI_AS",
                         "dnsZone": "1b4e2caff2530",
                         "publicDataEndpointEnabled" : false,
-                        "proxyOverride" : "Redirect"
+                        "proxyOverride" : "Redirect",
+                        "timezoneId" : "UTC"
                     }
                 }, {
                     "location" : "onebox",
@@ -51,7 +52,8 @@
                         "collation":  "SQL_Latin1_General_CP1_CI_AS",
                         "dnsZone": "1b4e2caff2530",
                         "publicDataEndpointEnabled" : false,
-                        "proxyOverride" : ""
+                        "proxyOverride" : "",
+                        "timezoneId" : "UTC"
                     }
                 }
                 ]
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMax.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMax.json
index 2ba88d0030f9..f75db55c1920 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMax.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMax.json
@@ -46,7 +46,8 @@
           "collation": "SQL_Latin1_General_CP1_CI_AS",
           "dnsZone": "1b4e2caff2530",
           "proxyOverride": "Redirect",
-          "publicDataEndpointEnabled": false
+          "publicDataEndpointEnabled": false,
+          "timezoneId" : "UTC"
         }
       }
     },
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMin.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMin.json
index 33136ae04304..7b72df56d4e6 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMin.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/examples/ManagedInstanceUpdateMin.json
@@ -30,7 +30,8 @@
           "administratorLogin": "dummylogin",
           "state": "Ready",
           "collation": "SQL_Latin1_General_CP1_CI_AS",
-          "dnsZone": "1b4e2caff2530"
+          "dnsZone": "1b4e2caff2530",
+          "timezoneId": "UTC"
         }
       }
     },
diff --git a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/managedInstances.json b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/managedInstances.json
index e2bc6b9668e5..c8c7b050df76 100644
--- a/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/managedInstances.json
+++ b/specification/sql/resource-manager/Microsoft.Sql/preview/2015-05-01-preview/managedInstances.json
@@ -384,6 +384,14 @@
             "modelAsString": true
 		      },
           "type": "string"
+        },
+        "timezoneId": {
+          "description": "Id of the timezone. Allowed values are timezones supported by Windows.\r\nWinodws keeps details on supported timezones, including the id, in registry under\r\nKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones.\r\nYou can get those registry values via SQL Server by querying SELECT name AS timezone_id FROM sys.time_zone_info.\r\nList of Ids can also be obtained by executing [System.TimeZoneInfo]::GetSystemTimeZones() in PowerShell.\r\nAn example of valid timezone id is \"Pacific Standard Time\" or \"W. Europe Standard Time\".",
+          "type": "string",
+          "x-ms-mutability": [
+            "read",
+            "create"
+          ]
         }
       }
     },