Notes

Unix/Epoch Timestamp Conversions and Usages (What?, The reason why?, How? )
What will be the Unix timestamp?
Unix timestamp is nothing but the number of seconds/milliseconds elapsed considering that 1970 Jan very first to any particular instant of moment.
For example , the timestamp of 1970 Jan 1st, 1 am is 3600(because the particular time difference by 1970 Jan very first, 1am to 1970 Jan 1st is usually 3600 seconds).
---------------------------- About 32-bit in addition to 64-bit systems regarding timestamps ----------------------------
Number of systems still retail store timestamps being an agreed upon 32-bit integer, individuals services will cause problems from January nineteen, 2038. This challenge is identified as the Year 2038 problem Or perhaps Y2038. Storing the particular timestamp as a 64-bit integer will be more future-proof to the long-term support.
Timestamps can end up being represented in multiple forms: seconds, milliseconds, and nano-seconds.
Seconds timestamp - This timestamp represents the count of seconds.
Milli-seconds timestamp -- This timestamp presents the count regarding milliseconds.
Nano-seconds timestamp - This timestamp represents the depend of nano-seconds.
Precisely why Unix timestamp will be needed?
Unix/Epoch timestamp gives an distinctive representation of typically the date-time around around the world. It always signifies the date-time in GMT (Greenwich Entail Time Zone) or even UTC, then a date-time of different timezone will be received by adding or subtracting the time difference in between the timezone and even GMT.
While operating with date-time making use of timestamps in typically the coding language and storing them in the database would likely be the perfect approach as they will be general for all typically the timezones. Date-time line signifies merely one special timezone, so getting a timestamp will be very easy to scale the application to function users worldwide.
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The other alternative with regard to timestamps to include in coding is ISO-String, nevertheless even the Iso-strings are generic for all your timezones. The transformation of the time string to a different timezone is not as simple while converting the timestamp.
For instance , If the particular timestamp value is definitely 1577923200 then,
In GMT, time is Thurs night, January 2nd 2020, 00: 00: 00 GMT+00: 00
At India/Kolkata, the time is Thursday, Jan 2nd 2020, 05: 30: 00 GMT+05: 30
At America/New_York, the time is usually Wednesday, January 1st 2020, 19: 00: 00 GMT-5: 00
How Unix timestamp conversion is carried out?
The epoch difference between the given day along with the date 1970 Jan 1st will certainly give the timestamp value.
From the acquired timestamp value, an individual should add or perhaps subtract the counteract value of your timezone from the timestamp to find the precise timestamp for the given date.

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