1 files changed, 4 insertions, 1 deletions

diff --git a/src/oplist.c b/src/oplist.c
index 292467f..4b3b666 100644
--- a/src/oplist.c
+++ b/src/oplist.c
@@ -301,7 +301,10 @@ static plist_err_t node_to_openstep(node_t node, bytearray_t **outbuf, uint32_t
         break;
     case PLIST_DATE:
         if (coerce) {
-            Time64_T timev = (Time64_T)node_data->realval + MAC_EPOCH;
+            Time64_T timev;
+            if (plist_real_to_time64(node_data->realval, &timev) < 0) {
+                return PLIST_ERR_INVALID_ARG;
+            }
             struct TM _btime;
             struct TM *btime = gmtime64_r(&timev, &_btime);
             char datebuf[32];