Yes
No, the Philippines and Singapore are not in the same time zone. The Philippines is in the Philippine Time Zone (UTC+8), while Singapore is in the Singapore Time Zone (UTC+8).
The same time as the Philippines, UTC + 8 hours, are in all of China, Hong Kong, Macau, Taiwan, Brunei, Malaysia and Singapore and parts of Russia, Mongolia, Indonesia and Australia.
Singapore Time and Beijing Time are the same (UTC + 8 hours).
There are 2 bridges connecting Singapore to Malaysia. The first one is the "Johor-Singapore Causeway" in the north and it links the city of Johor Bahru in Malaysia across the Straits of Johor to the town of Woodlands in Singapore. The second one is the "Tuas Second link" (also called "Malaysia-Singapore Second Link") and this one links the state of Johor in Malaysia with the industrial zone of Tuas in Singapore across the Tengeh Reservoir.
No, Singapore is in the Singapore Time Zone, which is UTC+8, while Beijing is in the China Standard Time Zone, which is also UTC+8. However, they may have different local times because of Daylight Saving Time adjustments or slight geographical differences.
There is never a time difference between Singapore and Bali; the time in both places is UTC + 8 hrs. However, Indonesia is considering the possibility of putting the whole country in one time zone.
Singapore (UTC+8) is 1 hr. ahead of Batam in Indonesia (UTC+7).
Despite sharing similar longitudes, Jakarta and Singapore are in different time zones because of historical decisions made by each country. Singapore follows Singapore Time (SGT), which is 1 hour ahead of Jakarta time (WIB). This difference in time zone helps countries to better coordinate business activities, daylight hours, and administrative operations.
Malaysia Time (UTC+8)
When it is 2:30 p.m. Central European Time (CET) in Frankfurt, Germany, the time in Singapore is 9:30 p.m. the same day. When Frankfurt is on daylight savings time, Frankfurt is only six hours ahead of Singapore. Singapore is in the Singapore time zone and does not observe daylight savings time.
They are in different time zones, but that means for some part of the day, they are in the same calendar day. Malaysia will start a new day before any part of the United States does, at which time Malaysia will be in the next calendar day, but the United States will enter that day too, much later. It is only places in the exact same time zone that are in the same day all of the time. For anywhere else, one place will reach the new day before another does, but they will all eventually be on the same day. So Malaysia and the United States do spend some time in the same calendar day.
Depending on what you define as Asia, there can be 10 to 11 time zones. Wikipedia says that Asia is from UTC +2 to UTC +12, meaning 11 time zones.