There is no obligation on their part to give you time off during your notice period. They will be busy replacing you. If you have any holiday left you will need to use that or go to interviews during your lunch break.
The only reason it applies in redundancy is because the employee has no choice but to leave and the employer is obliged to assist them in finding work. In your case you have chosen to quit before you have another job so you will have to work things out yourself. Good luck.
I guess the main points in this question and in your previous question have been answered but you may just like to ponder these questions:
How long have you been in your current job?
How many other jobs have you had?
Why did you leave your previous job(s)?
Do you think that your new job, whatever that may be, will be any different from your present job or previous jobs?
Hi Homes123, that other poster in your link was suspended so I don't know how that issue ended, but I can't see how it relates to Jgrove's query anyway, unless I'm missing something.
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Have you got holidays left, Jgrove?