41. The 2015 leap second also affected the Altea airlines reservation system used by Qantas and Virgin Australia. 42. They even take into account leap seconds , 43. Thereafter there will need to be the possibility of leap seconds at the end of any month. 44. The effect of leap seconds on the commercial sector has been described as " a nightmare ". 45. Hence the need for an occasional leap second every so often, to make up for lost time. 46. In this type of system the Unix time number violates POSIX around both types of leap second . 47. So there is no concept of maintaining a history of all the leap seconds that have ever happened. 48. The leap second was an unexpected consequence of the 1955 invention of the atomic clock, which revolutionized time-telling. 49. Both bits are set to announce an inserted leap second at the end of the current UTC month. 50. The NTP packet includes a leap second flag, which informs the user that a leap second is imminent.
