Ripple ledger time format? I am wondering what is the format used in Ripple ledger time? For example, one of the most recent ledgers had close_time of 447299110. I initially thought it was UNIX time, but the current time was 1393983976 - an order of magnitude of difference.

What is the Ripple ledger time format and how to convert from a UNIX time to that format?
Ripple times are seconds since 1/1/2000 00:00 UTC. You can add 946,684,800 to a Ripple time to convert it to a UNIX time. If you are writing code to convert from Ripple times to UNIX times, please do your math in a 64-bit variable, not a 32-bit one.