When it is 5pm in Ireland what time Singapore?

To determine the time in Singapore when it is 5pm in Ireland, you need to consider the time difference between the two locations. Ireland is located in the UTC+0 time zone, while Singapore is located in the UTC+8 time zone.

So, when it is 5pm UTC in Ireland, it is 5pm + 8 hours = 1am UTC+8 in Singapore. Therefore, when it is 5pm in Ireland, it is 1am the following day in Singapore.