diff --git a/boards/sim/sim/sim/configs/toybox/defconfig b/boards/sim/sim/sim/configs/toybox/defconfig
index 56281dd0373..b8a6c76c232 100644
--- a/boards/sim/sim/sim/configs/toybox/defconfig
+++ b/boards/sim/sim/sim/configs/toybox/defconfig
@@ -48,6 +48,7 @@ CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_LOCALE=y
 CONFIG_LIBC_LOCALE_CATALOG=y
 CONFIG_LIBC_LOCALE_GETTEXT=y
+CONFIG_LIBC_LOCALTIME=y
 CONFIG_LIBC_MAX_EXITFUNS=1
 CONFIG_LIBC_NUMBERED_ARGS=y
 CONFIG_NDEBUG=y