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).
Standard definition The standard definition for kilobyte is 1,000 (103) bytes, just like there are 1,000 meters in a kilometer. Likewise, the standard definition for gigabyte is 1,000,000,000 (109) bytes. Dividing, this means there are 1,000,000 (1 million) kilobytes in a gigabyte. This is the definition used for hard drives, portable memory drives (memory cards, USB drives), DVDs, Blu-ray disks, and most measures of performance.