With an off axis guider the autoguider will compensate for this movement, but with a guide scope the mirror movement can not be compensated for. The only fix is to lock the mirror down so it does not move at all relative to the rest of the telescope.
HZ travel tools > Time zones, world clock > Time difference calculator > Sydney time to London. Time difference between Sydney, Australia and London, UK is: -9:0 hours. Sydney is 9:0 hours ahead of London. That means when it is 8:00 am in London, it is 5:00 pm in Sydney. Daylight Saving Time (DST) / Summer Time is taken into account for all time difference calculations on this page.
8 hours. A Singapore time of 7.30am will be 11.30pm the prior evening in London. usually 7 hours, but it depends on the time of the year. Between the last Sunday of March and the last Sunday of October, Singapore is seven hours ahead of London. During that time, when it's 8 PM SGT in Singapore, it's 1 PM BST in London.