diff --git a/data/pldm_variables.py b/data/pldm_variables.py
index b2e9e6e..b7447af 100755
--- a/data/pldm_variables.py
+++ b/data/pldm_variables.py
@@ -4,6 +4,7 @@
 Contains PLDM-related constants.
 """
 
+PLDM_SUPPORTED_TYPES = ['base', 'platform', 'bios']
 
 # PLDM types.
 PLDM_TYPE_BASE = {'VALUE': '00', 'STRING': 'base'}
@@ -83,8 +84,6 @@
 
 # PLDM command format.
 
-CMD_GETPLDMTYPES = 'base GetPLDMTypes'
-
 '''
 e.g. : GetPLDMVersion usage
 
@@ -114,4 +113,10 @@
     ' 0x00 0x00 0x00 0x00 0x%s 0x%s'    # %(TransferOperationFlag, PLDMType)
 
 
-PLDM_SUPPORTED_TYPES = ['base', 'platform', 'bios']
+'''
+e.g. : SetDateTime usage
+
+pldmtool bios SetDateTime -d <YYYYMMDDHHMMSS>
+
+'''
+CMD_SETDATETIME = 'bios SetDateTime -d %s'