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Diffstat (limited to 'Master/texmf-dist/tex/context/base/mkiv/l-os.lua')
-rw-r--r--Master/texmf-dist/tex/context/base/mkiv/l-os.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkiv/l-os.lua b/Master/texmf-dist/tex/context/base/mkiv/l-os.lua
index 64c7de567c4..9aa8b8aa78c 100644
--- a/Master/texmf-dist/tex/context/base/mkiv/l-os.lua
+++ b/Master/texmf-dist/tex/context/base/mkiv/l-os.lua
@@ -459,7 +459,7 @@ end
local d
function os.timezone(delta)
- d = d or tonumber(tonumber(date("%H")-date("!%H")))
+ d = d or ((tonumber(date("%H")) or 0) - (tonumber(date("!%H")) or 0))
if delta then
if d > 0 then
return format("+%02i:00",d)