Mellow 60's or 70's song

Hiya!
Can anyone help me identify a song that I think goes like this:

Verse 1
Sunny day chase the night
pushing for the dawn
now the season is rapidly changing
it's alive and warm

Verse 2
A new day is born
why should I be worried or hurt
does dhe know the way I feel

Refrain
Can we meet for a while on a saturday
sunny saturday afternoon
Happiness on a saturday
sunny saturday, I met you

Verse 3
When I wake in the morning I see you
simply standing there(.....)

Sorry, that's all I have. I heard it in an episode of british TV-series "Heartbeat", which is supposed to take place in late 60's/early 70's. The singer was male, and the song had a mellow soft-rock feel, with upright bass, accoustic guitars and piano.
English isn't my native language, some of the words in the verses might be wrong, but I'm almost certain that the refrain is accurate. I appreciate all the help I can get!!!

I'd like to know that same song, just today I heard it in Heartbeat.

Hello LoveJoy, this song is "On a Saturday", of Keith West, lead-singer of "Tomorrow", a A-side single recorded on 1968.
I ripped the song of an album that I have of Keith, and you can dowload this tune here: http://www.mediafire.com/?0mngj3jaigd
Or you can listen the song in this video that I made (I love that song!!):
http://www.youtube.com/watch?v=VN-8lRkBXWU
Kisses,
Mario.