You even didn't mention the place of the data.
There could be different realities of sun speeds. As to Pontianak's sun reality, it is diametrically against Svalbard's on the same day, i.e. september equinox.
Pontianak's sun speeds up, Svalbard's sun speeds down.
Try providing data to actually try to show that.
All that graph shows is the angle of elevation and the time of sunrise and sunset.
We see that at Pontianak, the daylight hours go from 5:31 to 17:38, which is 12 hours and 7 minutes. This is expected due to how close to the equator it is.
Note that the sun illuminates MORE than 50% of Earth, due to how large it is, and refraction makes it appear earlier and disappear later.
Places further away from the equator get more daylight hours than those closer to the equator.
The extreme examples are the poles, which even on the equinox still have daytime. The sun sets after the equinox for them.
So Svalbard, having 12 hours and 23 minutes is expected.
The sun isn't going slower or faster. It is simply being above the horizon for different lengths of time.
What is even more nonsensical about your claim is that it is the same sun. Or are you now going to suggest there are 2 independent suns travelling at different speeds?
If you want to look at the actual speed of the sun, rather than just how long it is above the horizon for, look at the time between solar noon on different days.
We see that in Indonesia, it is at 11:34 on the equinox.
At the start of the month it is 11:42. At the end it is 11:32.
So that shows that solar noon is arriving Earlier, and thus the apparent speed of the sun is faster.
Importantly, there is a difference of 10 minutes across the month, and 2 minutes from the equinox to the end of the month.
For Svalbard, I don't know what location you picked as it is a state. So I will just use Longyearbyen.
It's times are 1 minute behind those that you used.
Solar Noon on the equinox is 12:49. At the start of the month it is 12:57 and at the end it is 12:47.
So both locations have solar noon drift by 10 minutes, with the solstice being 2 minutes later than the end of the month.
So no, the sun is not going at different speeds.
Globe gets debunked.
No, your lies about it do.
For globe model, the sun speed should be neatly:
Increasing from December to March
Decreasing from March to June
Increasing from June to September
Decreasing from September to December
Why?
There are 2 main effects, the axial tilt and the eccentricity of the orbit, and the axial tilt is the dominant effect.
For axial tilt we have the solstice around December 21st and June 21st.
This is the period where the apparent motion of the sun along the ecliptic is parallel to Earth's rotation. This means that the sun's motion relative to the equator, ignoring the rotation of Earth, is fastest, and thus the speed of its relative motion when we don't ignore the rotation is the slowest. i.e. solar noon will occur later and later during these times.
Then we have the equinoxes, around March 21st and September 21st.
This is where the sun is travelling at the greatest inclination along the ecliptic. This means the component of its motion parallel to the equator is smallest.
This means the relative motion ignoring the rotation is smallest, and thus when you include the rotation it is the largest.
This means that solar noon will occur earlier and earlier each day during these times.
Then on top of that we have the smaller contribution from the eccentricity of the orbit.
Near Jan 4 we have perihelion. This is where Earth is travelling fastest in its orbit and thus the sun will appear to go fastest relative to Earth ignoring the rotation, and thus when you don't ignore the rotation, the sun will appear to go slowest at this time.
Then near July 4 we have aphelion, where Earth is furthest from the sun and travelling the slowest, making solar noons earlier.
This matches what is observed.
You are not even close to debunking the globe.