diff --git a/wmi/inc/wmi_unified_twt_param.h b/wmi/inc/wmi_unified_twt_param.h
index 37e2855b6c..a2eac5b34f 100644
--- a/wmi/inc/wmi_unified_twt_param.h
+++ b/wmi/inc/wmi_unified_twt_param.h
@@ -285,6 +285,7 @@ enum WMI_HOST_TWT_COMMAND {
  * @flag_reserved: unused bits
  * @b_twt_recommendation: defines types of frames tx during bTWT SP
  * @b_twt_persistence: Countdown VAL frames to param update/teardown
+ * @wake_time_tsf: Absolute TSF value to start first TWT service period
  */
 struct wmi_twt_add_dialog_param {
 	uint32_t vdev_id;
@@ -308,6 +309,7 @@ struct wmi_twt_add_dialog_param {
 		flag_reserved:11,
 		b_twt_persistence:8,
 		b_twt_recommendation:3;
+	uint64_t wake_time_tsf;
 };
 
 /* enum - status code of Get stats TWT dialog
diff --git a/wmi/src/wmi_unified_twt_tlv.c b/wmi/src/wmi_unified_twt_tlv.c
index 472896ccd3..74a2abbd56 100644
--- a/wmi/src/wmi_unified_twt_tlv.c
+++ b/wmi/src/wmi_unified_twt_tlv.c
@@ -175,6 +175,8 @@ send_twt_add_dialog_cmd_tlv(wmi_unified_t wmi_handle,
 	cmd->max_wake_intvl_us = params->max_wake_intvl_us;
 	cmd->min_wake_dura_us = params->min_wake_dura_us;
 	cmd->max_wake_dura_us = params->max_wake_dura_us;
+	cmd->sp_start_tsf_lo = (uint32_t)(params->wake_time_tsf & 0xFFFFFFFF);
+	cmd->sp_start_tsf_hi = (uint32_t)(params->wake_time_tsf >> 32);
 	TWT_FLAGS_SET_CMD(cmd->flags, params->twt_cmd);
 	TWT_FLAGS_SET_BROADCAST(cmd->flags, params->flag_bcast);
 	TWT_FLAGS_SET_TRIGGER(cmd->flags, params->flag_trigger);