Troubleshooting: Timezone Discrepancies & Cron Schedule Tuning
Resolve schedule timing issues, UTC versus local clock offsets, and daylight saving time shifts to ensure routine briefings arrive exactly on time.
A common point of confusion for operators is setting a routine to run at “08:00 AM”, only to find that the report arrives at 04:30 AM or 11:30 AM.
Because Tishtar operates on a globally distributed edge network across multiple continents, all background schedulers reference standardized UTC (Coordinated Universal Time) unless you explicitly specify your local timezone in your profile.
Here is how to ensure your alerts land on your phone exactly when you want them.
1. Set Your Profile Local Timezone
Tishtar Studio automatically converts your desired execution times (e.g. “Every morning at 08:00 AM”) into underlying distributed autonomous cron triggers based on your account’s configured timezone.
Steps:
- Navigate to your Account Settings -> Profile Preferences.
- Locate the Timezone dropdown.
- Select your exact location (e.g.
Asia/Tehran (UTC+3:30),Europe/London (UTC+0),America/New_York (UTC-5)). - Save preferences. All future routine builder selections will now align with your local wall-clock time.
2. Advanced: Standard Cron Expression Guide
For advanced operators using raw cron schedules in Tishtar Studio, reference the standard 5-field syntax:
┌───────────── minute (0 - 59)
│ ┌───────────── hour (0 - 23, in UTC)
│ │ ┌───────────── day of the month (1 - 31)
│ │ │ ┌───────────── month (1 - 12)
│ │ │ │ ┌───────────── day of the week (0 - 6) (Sunday to Saturday)
│ │ │ │ │
* * * * *Popular Production Cron Examples (in UTC):
- Daily at 08:00 AM Tehran Time (UTC+3:30):
30 4 * * *(04:30 AM UTC) - Daily at 08:00 AM New York Time (UTC-5):
0 13 * * *(01:00 PM UTC) - Weekdays (Mon–Fri) at 09:00 AM London Time:
0 9 * * 1-5 - Twice Daily (Morning & Evening):
0 4,14 * * *
3. Daylight Saving Time (DST) Jitter
If your region observes Daylight Saving Time (clocks spring forward or fall back by one hour), UTC-based cron triggers will temporarily shift by 60 minutes relative to your local clock.
- Tip: Selecting a named timezone region (like
America/New_YorkorEurope/Berlin) rather than a fixed offset (likeUTC-5) allows Tishtar’s scheduler to automatically adjust for daylight shifts without manual intervention.