Daylight Saving Time in Mexico. In most of Mexico daylight saving time begins at 2:00 a.m. local time on the first Sunday in April. On the last Sunday in October areas on daylight saving time fall back to Standard Time at 2:00 a.m. local time. Central Standard Time (CST) becomes Central Daylight Time (CDT), and so forth.
It takes at least 2 - 3 hours to get completely cold if it's empty, up to 24 hours if it has food in it.But the food will still be kept cold enough during the original cooling process.ule of thumb is generally 48 hours in the refrigerator. It does not take more than 8 hours to properly marinate, but anything over 48 hours is too long.
Depending on the type and size of your freezer, it generally takes anywhere from 12-24 hours for your freezer to become cold enough to keep food frozen. A good way to test this is to put an ice cube tray with fresh water into the freezer - when the ice cubes are frozen, it is cold enough to freeze your food properly. Of course, you also want to ensure you leave the freezer door shut as much as possible, so cold air doesn't escape. So resist the temptation to check it every hour from the moment you plug it in. Wait at least 6 hours before you take your first peek, but a good time frame to expect is 12-24 hours. If you have food you need to keep frozen in the meantime, a good ice chest or cooler with some blocks of ice will usually be sufficient to kee everything cold - just don't leave it in the sun or any other warm spot.