rockbox mtime conversion

def to_bin(n):    bStr = ''    if n == 0:         return '0'    while n > 0:        bStr = str(n % 2) + bStr        n = n >> 1    return bStrdef mtime_to_unix(mtime):    bits = to_bin(mtime)    print bits    year = int(bits[:5], 2) + 1980    month = int(bits[5:9], 2)    day = int(bits[9:14], 2)    hour = int(bits[16:20], 2)    minute = int(bits[20:25], 2)    second = int(bits[25:30], 2)    print (year, month, day, hour, minute, second)    t = time.mktime((year, month, day, hour, minute, second, -1, -1, -1))    return tdef unix_to_mtime(unix):    year, month, day, hour, minute, second = [ to_bin(x) for x in time.localtime(unix)[:-3] ]    print time.localtime(unix)[:-3]    year = to_bin(int(year,2)-1980)    def pad(value, num):        return ("0"*num)[len(value):]+value    bits = ""    bits += pad(year, 5)    bits += pad(month, 4)    bits += pad(day, 5)     bits += "01" # BAD BAD BAD BAD, also, doesn't work    bits += pad(hour, 4)    bits += pad(minute, 5)    bits += pad(second, 5)    print bits    mt = int(bits, 2)    return mt### END CODE ###Example output:>>> rbdb.unix_to_mtime(rbdb.mtime_to_unix(957849363))111001000101111001111100010011(2008, 8, 23, 7, 24, 19)(2008, 8, 23, 7, 24, 19, 5, 236, 1)111001000101110101111100010011957832979>>> rbdb.unix_to_mtime(rbdb.mtime_to_unix(957240124))111001000011100101001100111100(2008, 8, 14, 4, 25, 28)(2008, 8, 14, 4, 25, 28, 3, 227, 1)111001000011100101001100111100957240124>>> rbdb.unix_to_mtime(rbdb.mtime_to_unix(953842093))111000110110100111100110101101(2008, 6, 26, 14, 13, 13)(2008, 6, 26, 14, 13, 13, 3, 178, 1)111000110110100111100110101101953842093>>> rbdb.unix_to_mtime(rbdb.mtime_to_unix(953842177))111000110110100111101000000001(2008, 6, 26, 14, 16, 1)(2008, 6, 26, 14, 16, 1, 3, 178, 1)111000110110100111101000000001953842177