Time difference between London, UK and Mumbai, India is: 5:30 hours. Mumbai is 5:30 hours ahead of London. When it is 9:00 am in London, it is 2:30 pm in Mumbai.
Size of files in Windows OS. (It's KB or kB?) One kilobyte (KB) is 1024 bytes in JEDEC-standard, whereas the definition has shifted, in most contexts, to mean 1000 bytes (kB) in accordance with SI. To resolve this difference, binary prefixes (kiB) are used. So we have 3 choices for using prefixes - JEDEC, IEC (both in Binary), and Metric (in Decimal).
A bit is represented with a lowercase b, whereas a byte is represented with an uppercase b (B). So Kb is kilobits, and KB is kilobytes. A kilobyte is eight times larger than a kilobit. A simple 1 or 0, times eight of these 1's and 0's put together is a byte. The string of code: 10010101 is exactly one byte.