diff --git a/pagerduty_team/README.md b/pagerduty_team/README.md
index bc5cceb0..853f4944 100644
--- a/pagerduty_team/README.md
+++ b/pagerduty_team/README.md
@@ -31,7 +31,7 @@ No modules.
 | <a name="input_manager_members"></a> [manager\_members](#input\_manager\_members) | PagerDuty user IDs to add as managers/admins. | `list(string)` | `[]` | no |
 | <a name="input_observer_members"></a> [observer\_members](#input\_observer\_members) | PagerDuty user IDs to add as observers. | `list(string)` | `[]` | no |
 | <a name="input_responder_members"></a> [responder\_members](#input\_responder\_members) | PagerDuty user IDs to add as responders. | `list(string)` | `[]` | no |
-| <a name="input_schedules"></a> [schedules](#input\_schedules) | Schedules to create for this team. | <pre>list(object({<br/>    name                         = string<br/>    time_zone                    = optional(string, "UTC")<br/>    start                        = string<br/>    rotation_virtual_start       = string<br/>    rotation_turn_length_seconds = number<br/>    users                        = list(string) # PD user IDs<br/>  }))</pre> | `[]` | no |
+| <a name="input_schedules"></a> [schedules](#input\_schedules) | Schedules to create for this team. | <pre>list(object({<br/>    name                         = string<br/>    time_zone                    = optional(string, "Etc/UTC")<br/>    start                        = string<br/>    rotation_virtual_start       = string<br/>    rotation_turn_length_seconds = number<br/>    users                        = list(string) # PD user IDs<br/>  }))</pre> | `[]` | no |
 | <a name="input_team_name"></a> [team\_name](#input\_team\_name) | PagerDuty team name. | `string` | n/a | yes |
 
 ## Outputs
diff --git a/pagerduty_team/schedules.tf b/pagerduty_team/schedules.tf
index 789c3aac..4d8c84a5 100644
--- a/pagerduty_team/schedules.tf
+++ b/pagerduty_team/schedules.tf
@@ -2,7 +2,7 @@ resource "pagerduty_schedule" "schedule" {
   for_each = local.schedules_by_name
 
   name      = each.key
-  time_zone = try(each.value.time_zone, "UTC")
+  time_zone = try(each.value.time_zone, "Etc/UTC")
   teams     = [pagerduty_team.team.id]
 
 
diff --git a/pagerduty_team/variables.tf b/pagerduty_team/variables.tf
index 6e3b8906..e2d4fe69 100644
--- a/pagerduty_team/variables.tf
+++ b/pagerduty_team/variables.tf
@@ -25,7 +25,7 @@ variable "schedules" {
   description = "Schedules to create for this team."
   type = list(object({
     name                         = string
-    time_zone                    = optional(string, "UTC")
+    time_zone                    = optional(string, "Etc/UTC")
     start                        = string
     rotation_virtual_start       = string
     rotation_turn_length_seconds = number