diff --git a/litellm/proxy/schema.prisma b/litellm/proxy/schema.prisma
index e24a9d5f3..7ffeab9ba 100644
--- a/litellm/proxy/schema.prisma
+++ b/litellm/proxy/schema.prisma
@@ -174,6 +174,7 @@ model LiteLLM_SpendLogs {
   completion_tokens   Int     @default(0)
   startTime           DateTime // Assuming start_time is a DateTime field
   endTime             DateTime // Assuming end_time is a DateTime field
+  completionStartTime DateTime? // Assuming completionStartTime is a DateTime field
   model               String   @default("")
   api_base            String   @default("")
   user                String   @default("")
diff --git a/litellm/proxy/utils.py b/litellm/proxy/utils.py
index f12cd4b43..ffff87c51 100644
--- a/litellm/proxy/utils.py
+++ b/litellm/proxy/utils.py
@@ -1862,6 +1862,7 @@ def get_logging_payload(
     metadata = (
         litellm_params.get("metadata", {}) or {}
     )  # if litellm_params['metadata'] == None
+    completion_start_time = kwargs.get("completion_start_time", end_time)
     call_type = kwargs.get("call_type")
     cache_hit = kwargs.get("cache_hit", False)
     usage = response_obj["usage"]
@@ -1910,6 +1911,7 @@ def get_logging_payload(
         "cache_hit": cache_hit,
         "startTime": start_time,
         "endTime": end_time,
+        "completionStartTime": completion_start_time,
         "model": kwargs.get("model", ""),
         "user": kwargs.get("litellm_params", {})
         .get("metadata", {})
diff --git a/schema.prisma b/schema.prisma
index e24a9d5f3..7ffeab9ba 100644
--- a/schema.prisma
+++ b/schema.prisma
@@ -174,6 +174,7 @@ model LiteLLM_SpendLogs {
   completion_tokens   Int     @default(0)
   startTime           DateTime // Assuming start_time is a DateTime field
   endTime             DateTime // Assuming end_time is a DateTime field
+  completionStartTime DateTime? // Assuming completionStartTime is a DateTime field
   model               String   @default("")
   api_base            String   @default("")
   user                String   @default("")