Hi, very difficult to get any info of this sort unless you know what Regiment/Battalion/Unit he was in and when. If you have that info then war diaries will be of help.
Your best bet is to apply for his service records, and once they arrive (after £30 and about 12 months of waiting) folks can help you decipher them, identify his units, and then you can track down war diaries. They aren't person by person detailed, but they paint a better picture of what his Regt/Bn/unit was doing on each day.
Wayne