diff --git a/aws/documentation/gov-funding-lapse/README.md b/aws/documentation/gov-funding-lapse/README.md
index c0eae7a0..21fd9b99 100644
--- a/aws/documentation/gov-funding-lapse/README.md
+++ b/aws/documentation/gov-funding-lapse/README.md
@@ -47,8 +47,8 @@ We will use a prefix of `gfl_` (government funding lapse).  Several tags will be
 
 * gfl_shutdown_timestamp
 
-This is **required**, and is the ISO 8601 timestamp of the time the service was shutdown.  You can get this from Linux with `date --iso=seconds`
-or with Terraform in the `timestamp()` function. With python:
+This is **required**, and is the RFC 3389/ISO 8601 timestamp of the time the service was shutdown.  You can get this from Linux with `date --iso=seconds`
+or with Terraform in the `timestamp()` function or the `time` provider `rfc3389` attribute. With python:
 
 ```python
 from datetime import datetime,timezone