diff --git a/sys/fs/nfs/nfs_commonsubs.c b/sys/fs/nfs/nfs_commonsubs.c
index b9ac31e285c0..7eac041084a4 100644
--- a/sys/fs/nfs/nfs_commonsubs.c
+++ b/sys/fs/nfs/nfs_commonsubs.c
@@ -594,6 +594,8 @@ nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap,
 			NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET);
 		if (vap->va_mtime.tv_sec != VNOVAL)
 			NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET);
+		if (vap->va_birthtime.tv_sec != VNOVAL)
+			NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMECREATE);
 		(void) nfsv4_fillattr(nd, vp->v_mount, vp, NULL, vap, NULL, 0,
 		    &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL);
 		break;
@@ -2043,8 +2045,15 @@ nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp,
 			break;
 		case NFSATTRBIT_TIMECREATE:
 			NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
-			if (compare && !(*retcmpp))
-				*retcmpp = NFSERR_ATTRNOTSUPP;
+			fxdr_nfsv4time(tl, &temptime);
+			if (compare) {
+			    if (!(*retcmpp)) {
+				if (!NFS_CMPTIME(temptime, nap->na_btime))
+					*retcmpp = NFSERR_NOTSAME;
+			    }
+			} else if (nap != NULL) {
+				nap->na_btime = temptime;
+			}
 			attrsum += NFSX_V4TIME;
 			break;
 		case NFSATTRBIT_TIMEDELTA:
diff --git a/sys/fs/nfs/nfsport.h b/sys/fs/nfs/nfsport.h
index e0a7e3f1dd04..d3be0981d253 100644
--- a/sys/fs/nfs/nfsport.h
+++ b/sys/fs/nfs/nfsport.h
@@ -649,6 +649,7 @@ struct nfsvattr {
 #define	na_atime	na_vattr.va_atime
 #define	na_mtime	na_vattr.va_mtime
 #define	na_ctime	na_vattr.va_ctime
+#define	na_btime	na_vattr.va_birthtime
 #define	na_gen		na_vattr.va_gen
 #define	na_flags	na_vattr.va_flags
 #define	na_rdev		na_vattr.va_rdev
diff --git a/sys/fs/nfs/nfsproto.h b/sys/fs/nfs/nfsproto.h
index 1578eece7207..4784046b56e2 100644
--- a/sys/fs/nfs/nfsproto.h
+++ b/sys/fs/nfs/nfsproto.h
@@ -1127,6 +1127,7 @@ struct nfsv3_sattr {
  	NFSATTRBM_SPACETOTAL |						\
  	NFSATTRBM_SPACEUSED |						\
  	NFSATTRBM_TIMEACCESS |						\
+ 	NFSATTRBM_TIMECREATE |						\
  	NFSATTRBM_TIMEDELTA |						\
  	NFSATTRBM_TIMEMETADATA |					\
  	NFSATTRBM_TIMEMODIFY |						\
@@ -1176,6 +1177,7 @@ struct nfsv3_sattr {
  	(NFSATTRBM_MODE |						\
  	NFSATTRBM_OWNER |						\
  	NFSATTRBM_OWNERGROUP |						\
+ 	NFSATTRBM_TIMECREATE |					\
  	NFSATTRBM_TIMEACCESSSET |					\
  	NFSATTRBM_TIMEMODIFYSET)
 #define	NFSATTRBIT_SETABLE2						\