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General

Hissab supports various date and time operations.

Valid date and time formats are:
FormatExample
dd.mm.yyyy
15.03.2020
Sun 15 Mar 2020
mm.dd.yyyy
03.15.2020
Sun 15 Mar 2020
mm.dd.yyyy
In this format, if there is ambiguity between date and month, it will use mm.dd.yyyy format
03.02.2020
Mon 2 Mar 2020
dd mmm yyyy
15 mar 2020
Sun 15 Mar 2020
yyyy mmm dd
2020 mar 15
Sun 15 Mar 2020
{date} {timezone/city}
Use common timezone abbreviations to specify timezones. You can also use popular city names to specify its timezone (Preferred)
15 mar 2020 est
Sun 15 Mar 2020 est
15 mar 2020 new york
Sun 15 Mar 2020 new york
hh:mm:ss:ms
The hour is mandatory in time format. Minutes, seconds and milliseconds are optional.
05:12:43:287
5:12:43:287
hh:mm am/pm
If am or pm is not mentioned, it will use 24 hour format.
10:33 pm
10:33 pm
hh:mm
14:3
14:03
{date} {time}
Use any date format with time format
2020 mar 15 10:12 pm
Sun 15 Mar 2020, 10:12 pm
You can perform intuitive operations with dates and times.
OperationExample
Add days, months, years etc to dates
15 mar 2020 + 10 days
Wed 25 Mar 2020
03.15.2020 + 3 months + 43 days
Mon 27 Jul 2020
Subtract days, months, years etc from dates
15 mar 2020 - 10 days
Thu 5 Mar 2020
03.15.2020 - 3 months - 43 days
Fri 1 Nov 2019
Similar operations can be performed with times
02:23:22 + 4 hours + 32 minutes
6:55:22
22:23:22 - 132 minutes
20:11:22
Or with combination of dates and times
15 mar 2020 - 30 hours
Fri 13 Mar 2020
15 mar 2020 02:23 pm - 4 hours + 30 minutes
Sun 15 Mar 2020, 10:53 am
15 mar 2020 02:23 am - 4 hours + 30 minutes
Sat 14 Mar 2020, 10:53 pm
Get difference between two dates or times. Default answer in free version will be in millisecond
15 mar 2020 - 23 jul 2020
18 week 4 day
But, You can convert it into any unit like year, days, hours etc.
15 mar 2020 - 23 jul 2010 to days
3,523 days
23:12:23 - 06:34 to minutes
998.3833 minutes
Hissab also supports these keywords to get current date or time
KeywordExample
now
Get current date and time
now
15 Dec 2024, 19:15:13
today
Get today’s date
today
15 Dec 2024
tomorrow
Get tomorrow’s date
tomorrow
16 Dec 2024
yesterday
Get yesterday’s date
yesterday
14 Dec 2024

Note: Date formats such as mm/dd/yyyy or mm-dd-yyyy with a / or - as a separator are not supported because of its ambiguity with divide and subtract operations.

Unix epoch timestamp conversion

You can convert a unix timestamp in millisecond or second to date or vice versa.

12 mar 2020 to epoch
1,583,971,200,000 milliseconds
12 mar 2020 to timestamp
1,583,971,200 seconds
1693248840 seconds to human date
Mon 28 Aug 2023, 18:54
1693248840234 to human date
Mon 28 Aug 2023, 18:54:00:234