1187915:31:23 hatch time for a humongofrog? really? I've logged off and logged back in a few times to make sure this isn't a glitch. I hope that I don't have to wait 135.81 years give or take a few days for leap years for it to hatch lol.
Don't worry it's only a display error and your egg will hatch in a normal amount of time. You will get this display error if your computer's clock is off by years, days, minutes, seconds or even portions of a second - it's not something you can change but do make sure your computer's clock is accurate by keeping it updated.
This happend to me once and I checked my clock and it was set a day ahead. I set it back and checked wizard101 but you cannot be doing this while on wizard101. anyway I set it back and it was back to normal hatching times.