Set correct start time of ts-file using ffmpeg - ffmpeg

Question

I am splitting up a video into multiple 10 second ts-parts (mpeg-ts format) using ffmpeg on windows.
To create the 2nd part (that starts at 10 seconds into the video and ends at 20 seconds into the video):
ffmpeg -i sample.avi -ss 00:00:10 -to 00:00:20 -vcodec libx264 -acodec aac -vf scale=426:-1 out1.ts
But when i check the file using ffprobe it says:
Duration: 00:00:10.02, start: 1.458667, bitrate: 359 kb/s
So the duration is ok but the start time is incorrect. Is it anyway i can use ffmpeg to correct it to 00:00:20?
The best solution would of course to be able to set the correct start time in my first command where i take out the 10 second part but i would also be ok with running a 2nd command to fix the time.
Is this possible? Cant find any documentation and all examples i found are not for my exact problem and don't seem to work then i play around with them.
Full output from ffprobe:
ffprobe.exe out1.ts
ffprobe version git-2020-02-06-343ccfc Copyright (c) 2007-2020 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200122
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 39.100 / 56. 39.100
libavcodec 58. 68.100 / 58. 68.100
libavformat 58. 38.100 / 58. 38.100
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 74.100 / 7. 74.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mpegts, from 'out1.ts':
Duration: 00:00:10.02, start: 1.458667, bitrate: 359 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 426x260 [SAR 780:781 DAR 18:11], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 131 kb/s

Answer 1

You can add -muxdelay 10 argument.
Update: As jarno commented, add: -muxdelay 10 -muxpreload 10
I found the solution here.
Using the following command:
ffmpeg -y -i sample.avi -ss 00:00:10 -to 00:00:20 -vcodec libx264 -acodec aac -vf scale=426:-1 -muxdelay 10 out1.ts
I am getting the following result from ffprobe:
Input #0, mpegts, from 'out1.ts':
Duration: 00:00:10.05, start: 20.020222, bitrate: 141 kb/s
I used the following commands for testing:
Generating AVI sample file with synthetic video and synthetic audio (in uncompressed raw format):
ffmpeg -y -f lavfi -i testsrc=size=192x108:rate=30 -f lavfi -i sine=frequency=500 -c:v rawvideo -pix_fmt bgr24 -c:a pcm_s16le -ar 22050 -t 30 sample.avi
Executing the command from your question and ffprobe (I added -y for overwriting the output):
ffmpeg -y -i sample.avi -ss 00:00:10 -to 00:00:20 -vcodec libx264 -acodec aac -vf scale=426:-1 -muxdelay 10 out1.ts
ffprobe out1.ts
Update:
As jarno commented, adding -muxpreload 10 is also necessary.
For cleaner solution add: -muxdelay 10 -muxpreload 10
Command example:
ffmpeg -y -i sample.avi -ss 00:00:10 -to 00:00:20 -vcodec libx264 -acodec aac -vf scale=426:-1 -muxdelay 10 -muxpreload 10 out1.ts