diff --git a/package/doc-asciidoc.mk b/package/doc-asciidoc.mk
index f59f9fa2f4..6ab5ad27e4 100644
--- a/package/doc-asciidoc.mk
+++ b/package/doc-asciidoc.mk
@@ -98,6 +98,8 @@ define $(2)_$(4)_INSTALL_CMDS
 endef
 endif
 
+$$(O)/docs/$(1)/$(1).$(6): export TZ=UTC
+
 ifeq ($(6)-$$(GENDOC_XSLTPROC_IS_BROKEN),pdf-y)
 $$(O)/docs/$(1)/$(1).$(6):
 	$$(warning PDF generation is disabled because of a bug in \