diff --git a/backend/azurefiles/azurefiles.go b/backend/azurefiles/azurefiles.go
index db0b9262a..d31d6d78f 100644
--- a/backend/azurefiles/azurefiles.go
+++ b/backend/azurefiles/azurefiles.go
@@ -253,10 +253,10 @@ func (f *Fs) Features() *fs.Features {
 
 // Precision return the precision of this Fs
 //
-// One second. FileREST API times are in RFC1123 which in the example shows a precision of seconds
+// The SMB last write time properties are ISO 8601 with 100 ns (FILETIME) precision
 // Source: https://learn.microsoft.com/en-us/rest/api/storageservices/representation-of-date-time-values-in-headers
 func (f *Fs) Precision() time.Duration {
-	return time.Second
+	return smbTimePrecision
 }
 
 // Hashes returns the supported hash sets.
diff --git a/docs/content/azurefiles.md b/docs/content/azurefiles.md
index b34b93c11..194f4b157 100644
--- a/docs/content/azurefiles.md
+++ b/docs/content/azurefiles.md
@@ -115,8 +115,8 @@ rclone sync --interactive /home/local/directory remote:dir
 
 ### Modified time
 
-The modified time is stored as Azure standard `LastModified` time on
-files
+The modified time is stored as the SMB `LastWriteTime` property on
+files. It has a precision of 100 ns.
 
 ### Performance
 
diff --git a/docs/data/backends/azurefiles.yaml b/docs/data/backends/azurefiles.yaml
index 44f0412ec..1d220dc6a 100644
--- a/docs/data/backends/azurefiles.yaml
+++ b/docs/data/backends/azurefiles.yaml
@@ -27,4 +27,4 @@ features:
 - WriteMimeType
 hashes:
 - md5
-precision: 1000000000
+precision: 100