When to end fast - from when the white is distinguishable from dark at dawn till Night - not sunset

 it is the popular assumption that we end fasting at sunset..
 but  on reading the Quran - i fint that it is incorrect this assumption.

 in relation to fasting the arabic read from the Quran

2:187
Ohilla lakum laylata alssiyami alrrafathu ila nisaikum hunna libasun lakum waantum libasun lahunna AAalima Allahu annakum kuntum takhtanoona anfusakum fataba AAalaykum waAAafa AAankum faalana bashiroohunna waibtaghoo ma kataba Allahu lakum wakuloo waishraboo hatta yatabayyana lakumu alkhaytu alabyadu mina alkhayti alaswadi mina alfajri thumma atimmoo alssiyama ila allayli wala tubashiroohunna waantum AAakifoona fee almasajidi tilka hudoodu Allahi fala taqrabooha kathalika yubayyinu Allahu ayatihi lilnnasi laAAallahum yattaqoona 

 the red bold is in relation to what i want to discuss..

حِلَّ لَكُمْ لَيْلَةَ الصِّيَامِ الرَّفَثُ إِلَى نِسَائِكُمْ هُنَّ لِبَاسٌ لَكُمْ وَأَنْتُمْ لِبَاسٌ لَهُنَّ عَلِمَ اللَّهُ أَنَّكُمْ كُنْتُمْ تَخْتَانُونَ أَنْفُسَكُمْ فَتَابَ عَلَيْكُمْ وَعَفَا عَنْكُمْ فَالْآنَ بَاشِرُوهُنَّ وَابْتَغُوا مَا كَتَبَ اللَّهُ لَكُمْ وَكُلُوا وَاشْرَبُوا حَتَّى يَتَبَيَّنَ لَكُمُ الْخَيْطُ الْأَبْيَضُ مِنَ الْخَيْطِ الْأَسْوَدِ مِنَ الْفَجْرِ ثُمَّ أَتِمُّوا الصِّيَامَ إِلَى اللَّيْلِ وَلَا تُبَاشِرُوهُنَّ وَأَنْتُمْ عَاكِفُونَ فِي الْمَسَاجِدِ تِلْكَ حُدُودُ اللَّهِ فَلَا تَقْرَبُوهَا كَذَلِكَ يُبَيِّنُ اللَّهُ آيَاتِهِ لِلنَّاسِ لَعَلَّهُمْ يَتَّقُونَ

Please note there is the alif missing at the beginning of this arabic paste.

in my  view translation is as thus on the red bolded parts - 

وَكُلُوا

wakulū

And eat

 

وَاشْرَبُوا

wa-ish'rabū

and drink

ḥattā

until

يَتَبَيَّنَ

yatabayyana

becomes distinct

lakumu

to you

الْخَيْطُ

l-khayṭu

the thread

الْأَبْيَضُ

l-abyaḍu

[the] white

mina

from

الْخَيْطِ

l-khayṭi

the thread

الْأَسْوَدِ

l-aswadi

[the] black

mina

of

الْفَجْرِ

l-fajri

[the] dawn.

thumma

Then

أَتِمُّوا

atimmū

complete

الصِّيَامَ

l-ṣiyāma

the fast

إِلَى

ilā

till

اللَّيْلِ

al-layli

the night.

 it is clear that sunset is not the night - at least for it it is ..
 night begins when sunset ends..
 so forthwith - end of any fasting is the start of night..
God be praised for helping me to see and to understand.

 also on some other issues based on a discussion with my friend today - sighting the moon is not a requisite in the Quran for the start of ramadan - i could not find anything in relation to sighting the moon - sighting the moon comes from one of the many hadiths  some people attribute to muhammed/his companions -i dont know how accurate that is over time.

 nevertheless i made a concise decision not to follow hadith over Quran.. Quran is from God and when else is there that is best?

http://www.quranse.org/QueryEngine/index.php?Cmd=BS&mv=0&BL=en&SearchQuery=2%3A18