I'm thinking about booking the following flights:

Singapore Airlines Flight 282 from Auckland to Singapore arriving at 6:35 A.M., connecting with ANA Flight 112 from Singapore to Narita departing at 8:30 A.M., with a 1 hour 55 minute connection time in Singapore

ANA Flight 112 from Singapore to Narita arriving at 4:20 P.M., connecting with United Flight 78 from Narita to Newark departing at 5:45 P.M., with a 1 hour 25 minute connection time at Narita

Do you know if these flights generally arrive on-time and if the gates are close together? Do you think it is safe to book these flights given the short connection times?

Thanks.