Extract the time:
--get the time as an hour
DATEPART(hh,getdate())
Extract the dayname:
--get the day as a word (short)
UPPER(left(datename(dw,getdate()),3))
--get something nicely formatted.
substring(convert(char,getdate() ,120),12,5)
Create a table full of sequential date_time
USE tempdb
DECLARE @t int
DECLARE @inc_date datetime
SET @inc_date = '2001-01-01 23:59:59'
--CHANGE THIS TIME TO GET DIFFERENT SNAPSHOT TIME first date and time of temp table
--if the temp table exists drop and recreate with the date time supplied above
IF (SELECT '1' as exist_ WHERE exists (select '1' from sysobjects WHERE name='##Temp_dates')) = '1'
BEGIN DROP TABLE ##Temp_dates END
--create the table
CREATE TABLE ##Temp_dates(t_date datetime NOT NULL PRIMARY KEY)
SET NOCOUNT ON
WHILE @inc_date <= '2012-12-31'
BEGIN
INSERT ##Temp_dates (t_date) VALUES (@inc_date)
SET @inc_date = @inc_date + 1 --or decimal value for hours 0.5 etc..
END