How to say:"at night"?

[Shine]

To say "when"( in the evening, at night, this year) in Latin is used Abl-nocte, anno, or Abl+in-in pace, or Locativus-interdiu, noctu (if i`m not mistaken) and what about Greak language?
Should I use Dat [face=SPIonic]h(mera|\, nukti\[/face] or it is better Dat+[face=SPIonic]e)n - e)n h(mera|, e)n nukti\[/face]or Gen [face=SPIonic]h(me/raj, nukto\j[/face]? or maybe it is Acc?

[annis]

Dative is for a specific point in time.

Accusative is for an extent of time (like "all day" or similar).

Smyth has a nice example contrasting these in section 1540:

[face=spionic]tau/thn me\n th\n h(me/ran au)tou= e)/meinan, th=| de\ u(sterai/a| ktl.[/face] throught that day they waited there, but on the following (day), etc.

For the genitive take a look at the Smyth grammar: it has several sections devoted to the different meanings, secc 1444-1447.

[Skylax]

[face=SPIonic]th=|de th=| nukti/[/face] dative without preposition = (precisely) this night
[face=SPIonic]e)n nukti/[/face] = Latin nocte
[face=SPIonic] nukto/j[/face] = Latin noctu

[Shine]

To Annis
Thank you for explanations, now everything seems much easier, just don`t have Smyth grammar, yet

To Skylax,
You probanbly know almost all answers, just a real one on-line Greak language teacher
By the way how to say 'thank you' in Greak?
1.[face=SPIonic]xa/rin apodi/dwmi[/face]
2.[face=SPIonic]xa/rin oi)=da[/face]
3.[face=SPIonic] xa/rin e)/xw[/face]
4.something else

[annis]

To Annis
Thank you for explanations, now everything seems much easier, just don`t have Smyth grammar, yet

I don't know what sort of internet connection you have, but we have a copy in PDF here at Textkit. It's large, and might take a while to download.

As for "thank you" I have seen both 2 and 3.