Rename regex internal command with space character

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1

I have a filename as follows

2018-01-07 20h46m 00 PTC - June 29th Live ###START###.png

The following rename internal command syntax successfully changes the date prefix in the file:

rename PATTERN (201\d\-\d\d-\d\d)(.*)(\..*) TO "2018-01-08\2\3" REGEXP

Now I try and add the time (20h46m) as follows but this does not work:

rename PATTERN (201\d\-\d\d-\d\d \d\dh\d\dm)(.*)(\..*) TO "\2\3" REGEXP

What am I doing wrong?
There is one space between the date and time formations in the file and in the regex constructs
Many thanks for any reply

2

It would appear that a space cannot be represented as a literal in a regular expression.
Is this normal?
No matter this worked for me:

rename PATTERN (201\d\-\d\d-\d\d\s\d\dh\d\dm)(.*)(\..*) TO "2018-01-08\2\3" REGEXP
3

Spaces in regular expressions are fine.

The problem is you need to put quotes around arguments that contain spaces, otherwise they look like two separate arguments.

rename PATTERN "(201\d\-\d\d-\d\d \d\dh\d\dm)(.*)(\..*)" TO "\2\3" REGEXP
4

Ah got it thank you sir