Help with time clock and stat wiring

[Wangerman]

Hi guys thanks to all those who have helped in the past and I am sorry to say I need advice again

My old boiler timeclock with stat is playing up and I want to replace it it has no makers name but says VRT-QT under the cover

It is wired in 3 core and earth as follows

Green/yellow is neutral side of timeclock or terminal 2
Red is terminal 1 or live of timeclock
Yellow is wired to terminal 3
Blue is wired to terminal 4

I want to replace this with a honeywell ST699 programmer and T6360 wall stat but am not sure help

Boiler is a valiant vcw 282 gb

Many thanks in advance as always

 

[Wangerman]

Forgot to say boiler is a combi so no hot water control required just need a stat to regulate temp and a clock to override it when heating is being called for out of timed hours