### A Message ID as it appears in an email:
2022-12-29 07:35:43.928000 GMT
### A Message ID as it appears in the exim log:
2023-01-08 06:36:04.082000 GMT
### New-format log message ID
2023-05-01 15:44:36.979706 BST
### Just the date part of the Message ID:
###    The Epoch ...
1970-01-01 01:00:00.000000 BST
### ... the script was under development at this time ...
2023-01-08 06:36:04.000000 GMT
### ... the end of exim msg-id time
3769-12-05 03:13:03.000000 GMT
### All three time zones with a non-GMT time
1656539662.789000
2022-06-29 21:54:22.789000
2022-06-29 22:54:22.789000 BST
### All three types of message-ids, at once:
1970-01-01 01:00:00.000000 BST
2022-12-29 07:35:43.928000 GMT
3769-12-05 03:13:03.000000 GMT
### Message IDs generated on a system, such as Mac or Cygwin,
### which has low-resolution Message-ID timestamps
1970-01-01 01:00:00.000000 BST
2038-12-24 05:45:35.999000 GMT
### An invalid base option
### Message IDs generated on a standard system
### with high-resolution Message-ID timestamps
1970-01-01 01:00:00.000000 BST
3002-09-30 12:51:45.999500 GMT
3769-12-05 03:13:03.999500 GMT
### Some strings that are similar to, but not Exim Message IDs:
### Print date with localtime
1970-01-01 01:00:00.000000 BST
2022-12-29 07:35:43.928000 GMT
3769-12-05 03:13:03.999500 GMT
### Print date with timezone GMT/Zulu
1970-01-01 00:00:00.000000
2022-12-29 07:35:43.928000
2022-12-29 07:35:43.928000
3002-09-30 12:51:45.999500
### Print date as seconds since the UNIX epoch.
0.000000
1672299343.999500
56800235583.999500
### Show the process id too
32590299105.999500	pid 874183
3002-09-30 12:51:45.999500 GMT	pid 874183
3002-09-30 12:51:45.999500 GMT	pid 874183
### Override the value of localhost_number set in the exim configuation file
3002-09-30 12:51:45.995000 GMT
3002-09-30 12:51:45.995000 GMT
2038-12-24 05:45:35.360000 GMT
### hostno too big
3002-09-30 12:51:45.995000 GMT
### hostno negative
### hostno too big
### From here as 701 - 703
### Each msg-id type, all zone
0.000000	pid 1319504
1970-01-01 00:00:00.000000	pid 1319504
1970-01-01 01:00:00.000000 BST	pid 1319504
0.000000	pid 1319504
1970-01-01 00:00:00.000000	pid 1319504
1970-01-01 00:00:00.000000 GMT	pid 1319504
32590299105.999500	pid 1319504
3002-09-30 12:51:45.999500	pid 1319504
3002-09-30 12:51:45.999500 GMT	pid 1319504
1288014663.915000	pid 774213
2010-10-25 13:51:03.915000	pid 774213
2010-10-25 13:51:03.915000 GMT	pid 774213
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 14:51:03.000000 BST
56800235583.000000
3769-12-05 03:13:03.000000
3769-12-05 03:13:03.000000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 13:51:03.000000 GMT
32590299105.000000
3002-09-30 12:51:45.000000
3002-09-30 12:51:45.000000 GMT
### All msg-id types, all zones,  localhost_number = 3
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
32590299105.215000
3002-09-30 12:51:45.215000
3002-09-30 12:51:45.215000 GMT
1288014663.150000
2010-10-25 13:51:03.150000
2010-10-25 13:51:03.150000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 14:51:03.000000 BST
56800235583.000000
3769-12-05 03:13:03.000000
3769-12-05 03:13:03.000000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 13:51:03.000000 GMT
32590299105.000000
3002-09-30 12:51:45.000000
3002-09-30 12:51:45.000000 GMT
### All msg-id types, all zones,  localhost_number = 13
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
32590299105.215000
3002-09-30 12:51:45.215000
3002-09-30 12:51:45.215000 GMT
1288014663.150000
2010-10-25 13:51:03.150000
2010-10-25 13:51:03.150000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 14:51:03.000000 BST
56800235583.000000
3769-12-05 03:13:03.000000
3769-12-05 03:13:03.000000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 13:51:03.000000 GMT
32590299105.000000
3002-09-30 12:51:45.000000
3002-09-30 12:51:45.000000 GMT
### All msg-id types, all zones,  localhost_number = 20
### All msg-id types, all zones,  base=36
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
2176782335.972000
2038-12-24 05:45:35.972000
2038-12-24 05:45:35.972000 GMT
102953955.999000
1973-04-06 14:19:15.999000
1973-04-06 14:19:15.999000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
102953955.000000
1973-04-06 14:19:15.000000
1973-04-06 15:19:15.000000 BST
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
102953955.000000
1973-04-06 14:19:15.000000
1973-04-06 14:19:15.000000 GMT
2176782335.000000
2038-12-24 05:45:35.000000
2038-12-24 05:45:35.000000 GMT
### All msg-id types, all zones,  base=62
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
32590299105.999500
3002-09-30 12:51:45.999500
3002-09-30 12:51:45.999500 GMT
1288014663.915000
2010-10-25 13:51:03.915000
2010-10-25 13:51:03.915000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 01:00:00.000000 BST
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 14:51:03.000000 BST
56800235583.000000
3769-12-05 03:13:03.000000
3769-12-05 03:13:03.000000 GMT
0.000000
1970-01-01 00:00:00.000000
1970-01-01 00:00:00.000000 GMT
1288014663.000000
2010-10-25 13:51:03.000000
2010-10-25 13:51:03.000000 GMT
32590299105.000000
3002-09-30 12:51:45.000000
3002-09-30 12:51:45.000000 GMT

******** SERVER ********
### A Message ID as it appears in an email:
### A Message ID as it appears in the exim log:
### New-format log message ID
### Just the date part of the Message ID:
###    The Epoch ...
### ... the script was under development at this time ...
### ... the end of exim msg-id time
### All three time zones with a non-GMT time
### All three types of message-ids, at once:
### Message IDs generated on a system, such as Mac or Cygwin,
### which has low-resolution Message-ID timestamps
### An invalid base option
### Message IDs generated on a standard system
### with high-resolution Message-ID timestamps
### Some strings that are similar to, but not Exim Message IDs:
### Print date with localtime
### Print date with timezone GMT/Zulu
### Print date as seconds since the UNIX epoch.
### Show the process id too
### Override the value of localhost_number set in the exim configuation file
### hostno too big
### hostno negative
### hostno too big
### From here as 701 - 703
### Each msg-id type, all zone
### All msg-id types, all zones,  localhost_number = 3
### All msg-id types, all zones,  localhost_number = 13
### All msg-id types, all zones,  localhost_number = 20
### All msg-id types, all zones,  base=36
### All msg-id types, all zones,  base=62