"Ignoring invalid time value" when writing PNGs

[GeeMack]

Using ImageMagick 7.0.6-6 Q16 x64 HDRI on Windows 10. When I run this command...

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magick logo: test.png

I get this warning...

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magick: Ignoring invalid time value `test.png' @ warning/png.c/MagickPNGWarningHandler/1744.

The same warning is issued when I use other IM native images like "gradient:" or "label:" as input images and save as a PNG.

I also get that warning sometimes if I use a PNG image as input and save as a PNG, but it doesn't always happen, and I haven't figured out what triggers it.

[magick]

Its possible this problem is fixed in ImageMagick 7.0.6-7. If not, let us know and we will investigate further.

[GeeMack]

Its possible this problem is fixed in ImageMagick 7.0.6-7. If not, let us know and we will investigate further.

I tried several tests with ImageMagick 7.0.6-7 Q16 x64 HDRI, and it appears this issue has been resolved. Thanks.

[glennrp]

It was a temporary glitch, due to some timestamps having the offset from UTC recorded as "Z" instead of "[+-]hh:mm", in IM-7.0.6-6 and 6.9.9-6.

[jeroenooms]

I am still seeing this problem in IM 6.9.9-7

[jeroenooms]

I found that this bug only appears at certain (local) time of the day. More discussion here: https://github.com/ImageMagick/ImageMagick/issues/685

[glennrp]

There was a problem with timezones east of GMT zone. I was using an unsigned int for "addhours"
but it can be negative. Working on a fix.